1815-5901 1815-5901 S1815-59012019000100042 Ecuador Cuba 00 04 2019 00 04 2019 40 1 42 52

[1] 1982 1. ed [2] 2017 3. ed [3] 2011 4. Ed [4] 2004 [5] 2012 2. Ed [6] 2014 [7] 2014 [8] 2016 423-30 [9] 2011 Netherlands [10] 2013 [11] 2016 37 1 1 73-80