0185-3058 0185-3058 S0185-30582007000100283 10.19130/iifl.nt.2007.25.1.220 Mexico 00 06 2007 00 06 2007 25 1 283 299

1962 125 1961 2003 26 1986 114 65 1954 14 9 1975 213