1870-4115 1870-4115 S1870-41152007000200160 10.22201/cimsur.18704115e.2007.4.220 Mexico 00 12 2007 00 12 2007 2 4 160 180

2006 1983 2000 1948 México 1995 Argentina 1987 194-219 1992 2002 2001 105-26