61
62
Published in 2002
Repository
63
64
65
Published in 2000
Repository
66
67
68
69
Published in 1998
Repository
70
Published in 1994
Repository
71
72
Published in 2003
Repository
73
by Peralta I., Eduardo; Vásquez G., José; Mora C., Eloy; Murillo I., Angel; Pinzón Z., José; Lépiz I., Rogelio
Published in 1994
Repository