<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1815-5901</journal-id>
<journal-title><![CDATA[Ingeniería Energética]]></journal-title>
<abbrev-journal-title><![CDATA[Energética]]></abbrev-journal-title>
<issn>1815-5901</issn>
<publisher>
<publisher-name><![CDATA[Universidad Tecnológica de La Habana José Antonio Echeverría, Cujae]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1815-59012022000100014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Un estudio sobre la anatomía de las pérdidas en la distribución de energía eléctrica]]></article-title>
<article-title xml:lang="en"><![CDATA[A Study on the Anatomy of Losses in Electric Energy Distribution]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Oliveira]]></surname>
<given-names><![CDATA[Vinicius]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilela Ferreira]]></surname>
<given-names><![CDATA[Duan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilela Ferreira]]></surname>
<given-names><![CDATA[Tarso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Sergipe Graduate Program of Electrical Engineering ]]></institution>
<addr-line><![CDATA[São Cristóvão Sergipe]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>43</volume>
<numero>1</numero>
<fpage>14</fpage>
<lpage>23</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1815-59012022000100014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1815-59012022000100014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1815-59012022000100014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Las pérdidas no técnicas representan el 7,3% del total de energía distribuida en Brasil. La correlación entre los indicadores socioeconómicos y las pérdidas sugiere que las mayores concentraciones de estafadores se encuentran en regiones donde la población tiene un bajo poder adquisitivo y una instrucción educativa reducida. En este trabajo se realizaron observaciones en 45 circuitos de distribución con el fin de recopilar información sobre irregularidades en el consumo de energía. Para caracterizar la anatomía de las pérdidas se realizaron cruces entre diferentes variables. Las relaciones se investigaron mediante las pruebas de correlación de Pearson, además de estar representadas gráficamente. Los resultados indican que cuanto mayor es el número de clientes en el circuito, menor es la tasa de pérdidas. También se reveló que los circuitos centralizados tienen menores pérdidas que los periféricos. Finalmente, parece que el porcentaje de anomalías tiende a disminuir sistemáticamente en un período de 6 a 11 años después de la aplicación de medidas para combatir y prevenir pérdidas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Non-technical losses represent 7,3% of the total energy distributed in Brazil. The correlation between socioeconomic indicators and losses suggests that the highest concentrations of fraudsters are in regions where the population has low purchasing power and reduced educational instruction. This work carried out observations in 45 distribution circuits, in order to collect information on irregularities in energy consumption. In order to characterize the anatomy of losses in these locations, crossings were carried out between different variables. The relationships were investigated using Pearson&#8217;s correlation tests, in addition to being graphically represented. The results indicate, that the greater the number of customers in the circuit, the lower the loss rate. It was also revealed that centralized circuits have lower losses than borderline ones. Finally, it appears that the percentage of anomalies tends to systematically decrease within a period of 6 to 11 years after the application of measures to combat and prevent losses.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Non-technical loss]]></kwd>
<kwd lng="en"><![CDATA[energy theft]]></kwd>
<kwd lng="en"><![CDATA[loss anatomy]]></kwd>
<kwd lng="en"><![CDATA[graphic representations]]></kwd>
<kwd lng="en"><![CDATA[Pearson&#8217;s correlation coefficient]]></kwd>
<kwd lng="es"><![CDATA[Pérdida no técnica]]></kwd>
<kwd lng="es"><![CDATA[robo de energía]]></kwd>
<kwd lng="es"><![CDATA[anatomía de la pérdida]]></kwd>
<kwd lng="es"><![CDATA[representaciones gráficas]]></kwd>
<kwd lng="es"><![CDATA[coeficiente de correlación de Pearson]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[HAMMERSCHMITT]]></surname>
<given-names><![CDATA[B. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Non-Technical Losses Review and Possible Methodology Solutions]]></source>
<year>2020</year>
<conf-name><![CDATA[ 6thInternational Conference on Electric Power and Energy Conversion Systems (EPECS)]]></conf-name>
<conf-loc>Istanbul, Turkey </conf-loc>
<page-range>64-8</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DEPURU]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Measures and setbacks for controlling electricity theft]]></source>
<year>2010</year>
<conf-name><![CDATA[ North American Power Symposium 2010]]></conf-name>
<conf-loc>Arlington, TX </conf-loc>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NIZAR]]></surname>
<given-names><![CDATA[A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[Z. Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Identification and detection of electricity customer behavior irregularities]]></source>
<year>2009</year>
<conf-name><![CDATA[ Proc. of IEEE/PES Power Systems Conference and Exposition]]></conf-name>
<conf-loc>Seattle, Washington, United States </conf-loc>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NAGI]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nontechnical loss detection for metered customers in power utility using support vector machines]]></article-title>
<source><![CDATA[IEEE Trans. Power Del.]]></source>
<year>2010</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1162-71</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NIZAR]]></surname>
<given-names><![CDATA[A. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[,Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Power utility nontechnical loss analysis with extreme learning machine model]]></article-title>
<source><![CDATA[IEEE Trans. PowerSyst.]]></source>
<year>2008</year>
<volume>23</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>946-55</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GAWLAK]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[The influence of investment on reducing energy losses in distribution networks]]></source>
<year>2015</year>
<conf-name><![CDATA[ 16thInternational Scientific Conference on Electric Power Engineering (EPE)]]></conf-name>
<conf-loc>Kouty nad Desnou, Czech Republic </conf-loc>
<page-range>315-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[YIP]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Detection of Energy Theft and Metering Defects in Advanced Metering Infrastructure Using Analytics]]></source>
<year>2018</year>
<conf-name><![CDATA[ International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)]]></conf-name>
<conf-loc> </conf-loc>
<page-range>15-22</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8.</label><nlm-citation citation-type="">
<collab>ANEEL. Agência Nacional de Energia Eléctrica</collab>
<source><![CDATA[Perdas de Energia Elétrica na Distribuição]]></source>
<year>2021</year>
</nlm-citation>
</ref>
<ref id="B9">
<label>9.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LEITE]]></surname>
<given-names><![CDATA[J. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Mantovani]]></surname>
<given-names><![CDATA[JRS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Detecting and Locating Non-Technical Losses in Modern Distribution Networks]]></article-title>
<source><![CDATA[IEEE Transactions on Smart Grid]]></source>
<year>2018</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1023-32</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MADRIGAL]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rico]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
<name>
<surname><![CDATA[Uzcategui]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Estimation of Non-Technical Energy Losses in Electrical Distribution Systems]]></article-title>
<source><![CDATA[IEEE Latin America Transactions]]></source>
<year>2017</year>
<volume>15</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1447-52</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GLAUNER]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Large-scale detection of non-technical losses in imbalanced data sets]]></source>
<year>2016</year>
<conf-name><![CDATA[ IEEE Power &amp; Energy Society Innovative Smart Grid Technologies Conference]]></conf-name>
<conf-loc>Minneapolis, MN </conf-loc>
<page-range>1-5</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[QUINTERO Rojas]]></surname>
<given-names><![CDATA[G. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gallego]]></surname>
<given-names><![CDATA[R. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Advanced analytics for non-technical losses of energy]]></source>
<year>2015</year>
<conf-name><![CDATA[ IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM)]]></conf-name>
<conf-loc>Montevideo </conf-loc>
<page-range>579-84</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NIZAR]]></surname>
<given-names><![CDATA[A. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Load Profiling Method in Detecting non-Technical Loss Activities in a Power Utility]]></source>
<year>2006</year>
<conf-name><![CDATA[ IEEE International Power and Energy Conference]]></conf-name>
<conf-loc> </conf-loc>
<page-range>82-7</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PENIN Carlos]]></surname>
<given-names><![CDATA[Alexandre]]></given-names>
</name>
</person-group>
<source><![CDATA[Combate, Prevenção e Otimização de Perdas Comercias de Energia Elétrica]]></source>
<year>2008</year>
<conf-name><![CDATA[ Doctoral dissertation]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B15">
<label>15.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[POVEDA]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[A new method to calculate power distribution losses in an environment of high unregistered loads]]></source>
<year>1999</year>
<conf-name><![CDATA[ IEEE Transmission and Distribution Conference]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B16">
<label>16.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NAGI]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[NTL detection of electricity theft and abnormalities for large power consumers In TNB Malaysia]]></source>
<year>2010</year>
<conf-name><![CDATA[ IEEE Student Conference on Research and Development (Scored)]]></conf-name>
<conf-loc>Kuala Lumpur, Malaysia </conf-loc>
<page-range>202-6</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17.</label><nlm-citation citation-type="">
<collab>ANEEL. Agência Nacional de Energia Elétrica</collab>
<source><![CDATA[Perdas de Energia]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B18">
<label>18.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ALVES]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Reduction of Non-Technical Losses by Modernization and Updating of Measurement Systems]]></source>
<year>2006</year>
<conf-name><![CDATA[ IEEE/PES Transmission &amp; Distribution Conference and Exposition: Latin America]]></conf-name>
<conf-loc>Caracas </conf-loc>
<page-range>1-5</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROMERO Agüero]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Improving the efficiency of power distribution systems through technical and non-technical losses reduction]]></source>
<year>2012</year>
<conf-name><![CDATA[ PES T&amp;D]]></conf-name>
<conf-loc>Orlando, FL </conf-loc>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PERALTA]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[BC Hydro's methodology for energy losses assessment in distribution systems]]></source>
<year>2009</year>
<conf-name><![CDATA[ IEEE Electrical Power &amp; Energy Conference]]></conf-name>
<conf-loc>Montreal </conf-loc>
<page-range>1-6</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SAHOO]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Electricity Theft Detection Using Smart Meter Data]]></source>
<year>2015</year>
<conf-name><![CDATA[ IEEE PES Innovative Smart Conference of Technologies Grid]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B22">
<label>22.</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CHANDEL]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Thakur]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Sawale]]></surname>
<given-names><![CDATA[BA.]]></given-names>
</name>
</person-group>
<source><![CDATA[Energy Meter tampering: Major cause of non-technical losses in Indian distribution sector]]></source>
<year>2016</year>
<conf-name><![CDATA[ International Conference on Electrical Power and Energy Systems (ICEPES)]]></conf-name>
<conf-loc>Bhopal </conf-loc>
<page-range>368-71</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BUZAU]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hybrid Deep Neural Networks for Detection of Non-Technical Losses in Electricity Smart Meters]]></article-title>
<source><![CDATA[IEEE Transactions on Power Systems]]></source>
<year>2020</year>
<volume>35</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1254-63</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ARANHA Neto]]></surname>
<given-names><![CDATA[EAC]]></given-names>
</name>
<name>
<surname><![CDATA[Coelho]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Probabilistic methodology for Technical and Non-Technical Losses estimation in distribution system]]></article-title>
<source><![CDATA[Electrical Power Systems Res.]]></source>
<year>2013</year>
<volume>97</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>93-9</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CHEN]]></surname>
<given-names><![CDATA[PY]]></given-names>
</name>
<name>
<surname><![CDATA[Popovich]]></surname>
<given-names><![CDATA[PM.]]></given-names>
</name>
</person-group>
<source><![CDATA[Correlation: parametric and nonparametric measures]]></source>
<year>2002</year>
<page-range>95</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
<publisher-name><![CDATA[Sage]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<label>26.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[JUPP]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Sage Dictionary of Social Research Methods]]></article-title>
<source><![CDATA[Sage]]></source>
<year>2006</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>43</page-range><publisher-loc><![CDATA[London ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B27">
<label>27.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MOORE]]></surname>
<given-names><![CDATA[DS.]]></given-names>
</name>
<name>
<surname><![CDATA[McCabe]]></surname>
<given-names><![CDATA[GP.]]></given-names>
</name>
</person-group>
<source><![CDATA[Introduction to the Practice of Statistics]]></source>
<year>2003</year>
<page-range>127</page-range><publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[W.H. Freeman and Company]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<label>28.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PARANHOS]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Desvendando os Mistérios do Coeficiente de Correlação de Pearson: o Retorno]]></source>
<year>2014</year>
<numero>8</numero>
<issue>8</issue>
<page-range>66-95</page-range><publisher-loc><![CDATA[São Paulo ]]></publisher-loc>
<publisher-name><![CDATA[Leviathan]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B29">
<label>29.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[COHEN]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Statistical Power Analysis for the Behavioral Sciences]]></source>
<year>1989</year>
<edition>2th</edition>
<page-range>1096</page-range><publisher-loc><![CDATA[Mahwah, NJ ]]></publisher-loc>
<publisher-name><![CDATA[Lawrence Erlbaum Associates]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<label>30.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DANCEY]]></surname>
<given-names><![CDATA[CP]]></given-names>
</name>
</person-group>
<source><![CDATA[Estatística Sem Matemática para Psicologia: Usando SPSS para Windows]]></source>
<year>2006</year>
<publisher-loc><![CDATA[Porto Alegre ]]></publisher-loc>
<publisher-name><![CDATA[Artmed]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<label>31.</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MUKAKA]]></surname>
<given-names><![CDATA[M. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A guide to appropriate use of correlation coefficient in medical research]]></article-title>
<source><![CDATA[Malawi Medical Journal]]></source>
<year>2012</year>
<volume>24</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>69-71</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[FISCHER]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[A History of the Central Limit Theorem]]></source>
<year>2011</year>
<publisher-name><![CDATA[Springer Science&amp; Business Media]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<label>33.</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CONOVER]]></surname>
<given-names><![CDATA[W. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Practical nonparametric statistics]]></source>
<year>1998</year>
<publisher-loc><![CDATA[USA ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
