0016-7169 0016-7169 S0016-71692015000400323 Mexico Mexico Mexico Mexico Mexico 00 12 2015 00 12 2015 54 4 323 342

1985 24 1 1 21-30 1986 1991 425-45 Astro Event Group 2015 1993 32 561-7 1995 22 3075-8 1990 310 1513-20 2002 27 1990 172 77-90 1995 67 123-52 1998 37 263-82 2008 1959 70 1962 68 1985 252-60 1986 18-9 1992 a 12 5-13 1992 1993 32 543-59 1995 34 341-52 1981 1990 95 21931-48 1958 73-7 1994 33 139-51 1995 23 751-4 2000 41-64 1993 32 487-99 1979 107-15 1989 28 273-86 1990 64 187-210 1979 2nd 1985 13 54-7 1990 107 107 2002 22 1994 318 1117-24 1994 106 383-94 1982 93 514-23 1999 12 557-65 1926 45 125-34 1988 146 353-64 1989 5 3-18 1996 24 921-4 1997 39 125-40 1998 40 350-62 1989 43 13-9 1992 31 475-92 2012 1980 1965 30 1992 31 4 4 493-507 1994 239 61-71 1988 10 649-59 1981 1982 4 105-15 1981 9 111-31