1992-82381992-8238S1992-82382020000100013CubaCuba0006202000062020701318American Statistical Association (ASA)19991994198720165a198219812014255210-242004200320142VV203-222010Segunda200520092014Sexta195420016122213-8201722148-5619851978Cuarta20161992199420154ta19972006