0001-6002 0001-6002 S0001-60022017000100032 Costa Rica 00 03 2017 00 03 2017 59 1 32 34

1 2009 63 2 2016 3 2003 30 325-9 4 1983 5 1987 40 113-41 6 2003 30 3341-2 7 1989 42 645-8 8 2001 107 874-6 9 1991 44 53-4 10 2006 56 540-2 11 2016 137 314-31