0185-3058 0185-3058 S0185-30582014000200201 México 00 00 2014 00 00 2014 32 1 201 211 1981 1955 23 23 267-87 1959 1969 23-42 1950 11-6 1983 1914 2005 47-58 1960 2008 1859 1958 1951 19 19 227-9 1981 1958