0035-001X 0035-001X S0035-001X2018000600577 10.31349/revmexfis.64.577 Chile 00 12 2018 00 12 2018 64 6 577 583

1 1974 10 2 3 1945-2032 3 2005 72 4 1981 33 5 1991 44 6 2012 27 7 2009 0908 8 2010 57 9 2000 62 10 1980 7th Ed. 11 1981