0187-893X 0187-893X S0187-893X2019000200114 10.22201/fq.18708404e.2019.2.67174 Argentina 00 00 2019 00 00 2019 30 2 114 128

1992 1992 255 556-9 1999 2000 1991 8 293-332 2010 10 2011 2 2002 2011 88 351-60 2018 1982 64 377-9 1987 11 65-99 LibreTexts 2018 1986 32 3 3 7-1 1999 320 309-34 2008 26 2 2 153-76 1993 4 253-84 2008 2 2009 2 2003 2 1-30 1986 2002 20 3 3 368-86 2000 90 89-110 2006 17 300-7 2015 295 66-70 2016 22 1 1 26-38 2018 Río Cuarto, Argentina 2018 2003 13 141-56 1996 7 3 3 145-9 2011 33 2 2 179-95 1989 24 345-37 2004 88 3 3 465-92