2215-2466 2215-2466 S2215-24662017000200163 10.22458/rr.v7i2.1837 Costa Rica 00 12 2017 00 12 2017 7 2 163 191

2012 1859 2013 2007 2010 1ra 2007 1993 1 1993 2 1653 3 2007 2 2 1997 1990 1905 X 1 1 2010 1ra 1983 2011 1873 4 2010