141
Published in 2004
Repository
142
Published in 1992
Repository
143
144
145
146
Published in 2000
Repository
147
148
by Monteros J., Cecilia; Yumisaca, Fausto; Tello Torres, Cristina Margarita; Montesdeoca, Luis; Reinoso R., Iván A.; Garófalo, Javier; Carrera, Efrén; Andrade-Piedra, Jorge; Cuesta Subía, Hugo Xavier
Published in 2011
Repository
149
150
Published in 2000
Repository
151
by Caviedes C., Mario; Yánez G., Carlos; Silva, Edison; Dobronsky, Jorge; Caicedo, Marlon; Zambrano Mendoza, José Luis; Heredia, Jorge
Published in 2002
Repository
152
153
154
155
Published in 1999
Repository
156
157
158
Published in 2003
Repository
159
Published in 1993
Repository
160