1665-8574 1665-8574 S1665-85742017000200227 10.22201/cialc.24486914e.2017.65.56880 Mexico 00 12 2017 00 12 2017 65 227 255

2003 7 7 1977 1978 2004 2016 1972 1970 59 59 1988 1994 2005 1972 13 13 1980 1968 1970 59 59 2007 1972 1977