2218-3620 2218-3620 S2218-36202018000300175 República del Ecuador 00 06 2018 00 06 2018 10 3 175 179

2002 1999 1993 1984 2006 2010 8 1 1 11-34 1983 2013 2007 13 1 1 83-103 2001 2008 1996 2006 2007 2007 2014