0376-7892 0376-7892 S0376-78922019000200004 10.4321/s0376-78922019000200004 México México 00 06 2019 00 06 2019 45 2 115 126

1 1984 73 230-4 2 1996 98 38-9 3 1999 103 173-5 4 2003 27 275-9 5 1996 122 1-4 6 1992 90 821-3 7 2003 112 1533-5 8 1996 23 255-8 9 1999 32 37-8 10 1999 15 309 309 1-3 11 1999 104 2202-5 12 2000 106 922-93 13 1998 37 37-9 14 1997 100 1941-3 15 1995 21 207-8 16 2004 114 1298-9 17 2004 28 375-6 18 2007 19 4 4 287-92