2215-3470 2215-3470 S2215-34702019000100083 10.15359/ru.33-1.7 Costa Rica Costa Rica 00 06 2019 00 06 2019 33 1 83 100

1959 1995 2002 2010 1997 2010 2017 37 4 4 1733-71 1998 2016 2007 2005 2003 2003 2004 1995