0379-3982 0379-3982 S0379-39822017000200048 10.18845/tm.v30i2.3196 Costa Rica 00 06 2017 00 06 2017 30 2 48 57

[1] CONIFOR [2] [3] [4] 40-3 [5] [6] [7] [8] V [9] 20 November 1998 [10] 2005 [11] 2006 6 9B 9B [12] 2000 [13] 2005 [14] [15] 2007 2007 [16] 2007 [17] 2007 [18] 2006