1870-5472 1870-5472 S1870-54722018000300399 Mexico 00 09 2018 00 09 2018 15 3 399 412

1999 20 1 1 5-39 2000 1 1-45 2001 18 2 2 102-20 2002 32 12 12 2475-501 2008 35 294-308 1982 9 2004 43 195-205 2001 36 189-200 1994 5 13-9 2013 54 760-71 1996 26 247-66 1984 10 417-35 1986 13 1 1 327-31 1996 98 10 10 12-26 2014 35 48-58 1964 29 1 1 1-27 1997 99 6 6 199-206 1959 37 117-24 2009 90 4 4 473-501 OMPI 2015 1992 25 1-65 1994 50 4 4 19-45 2012 UNESCO 2003 2015 75