2177-5796 10.22483/2177-5796.2019v21n3p709-724 Brazil 10 12 2019 10 12 2019 21 3 709 724

2012 1985 1995 2005 2004 15-37 2011 2012a 263-266 2012b 254-262 2012c 2012 2013 1994 2014a 2014b 2016 29-50 1991 2016 2006