1405-9193 1405-9193 S1405-91932017000100327 10.22201/iij.24484881e.2017.36.10868 Chile 00 06 2017 00 06 2017 36 327 349

1988 27 y 28 27 y 28 1950 1991 74 1901 I 1991 8a 383-5 1988 2001 4a 1979 7a 2004 1975 I 2002 5a 1971 1953 1985 1972 I 1957 1982 1997 2a 1997 1985 1985 1988 2a 1988 2a