0016-7169 0016-7169 S0016-71692016000400275 10.19155/geofint.2016.055.4.5 Mexico Mexico Spain 00 12 2016 00 12 2016 55 4 275 291

1981 76 43-56 1983 SU-30 270 2009 6 3 3 221-30 2011 6 3 3 221-30 2005 163 572-384 1981 78 555-63 2006 30 350-62 1996 124 105-12 1984 51 65-70 1963 1989 54 57-65 1991 107 449-63 1993 29 177-88 1997 62 253-65 1999 59-66 2000 43 4-12 2001 9 1039-54 1980 2 277-92 2000 142 199-231 2006 44 820-5 2007 46 241-8 1991 81 1-20 2013 San Francisco, CA, USA 13-614 2002 2008 32 595-609