2448-7678 2448-7678 S2448-76782002000100001 Mexico 00 06 2002 00 06 2002 31 90

2001 1991 CCI 2001 Conacyt 1999 INEGI 2000 OTA 1998 Washington, D.C. 1999 42 2 2 WRI 1999 WRI 1999