1405-8421 1405-8421 S1405-84212017000200461 10.22136/est17542017775 Argentina 00 08 2017 00 08 2017 17 54 461 489

2012 199-232 2004 2009 263-84 2011 1974 2014 2012 Buenos Aires, Argentina 2003 1977 27 12 12 1429-38 2003 36 1 1 161-210 2004 11 1 1 41-70 1992 2011 237-318 1982 1 16 16 115-42 1993 2016 9 5 5 119-38 1978 1998 67 2 2 281-315 2009 27-56 2010 17-50 2004 1986 1 4 4 24-35 2006 República de Bolivia 2012 2001 27 82 82 1-34 2006 1979 2012 1-55 2007