0379-3982 0379-3982 S0379-39822018000100160 10.18845/tm.v31i1.3505 Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica Costa Rica 00 03 2018 00 03 2018 31 1 160 166

[1 ] 2014 63 4 4 387-2 [2 ] 2014 48 3 3 271-84 [3 ] 2014 2 1 1 [4 ] 2013 3 3 11-8 [5 ] 2015 27 1 1 223-32 [6 ] 2010 9 4 4 486-501 [7 ] 2012 28 4 4 1771-9 [8 ] 2014 56 6 6 507-15 [9 ] 2014 19 21-2 [10 ] 2013 28 4 4 379-87 [11 ] 2007 4 4 4 30-7 [12 ] 2013 4 11 11 2919-25 [13 ] 2012 8 4 4 267-76 [14 ] 2013 2 2 2 47-55 [15 ] 2013 56 3 3 349-56