1405-9193 1405-9193 S1405-91932020000100137 10.22201/iij.24484881e.2020.42.14339 Brazil 00 06 2020 00 06 2020 42 137 153

2010 18a. ed. 2003 2007 2012 14a. ed. 2018 2016 2004 5a. ed. 2011 2a. ed. 2010