1
Published in 1981
Repository
3
Published in 1981
Repository
4
Published in 1999
Repository
5
6
Published in 1981
Repository
7
Published in 2007
Repository
8
9
10
by Revelo, Jorge; Viteri D., Pablo; Vásquez C., Wilson; Valverde, Franklin; León F., Juan; Gallegos, Patricio
Published in 2010
Repository
11
12
Published in 1981
Repository
13
14
Published in 2004
Repository
15
Published in 1981
Repository
16
Published in 2004
Repository
17
Published in 1981
Repository
18
Published in 2008
Repository
19
by Viteri D., Pablo; León F., Juan; Vásquez C., Wilson; Encalada, Claudio; Martínez, Aníbal; Revelo, Jorge; Posso, Manuel; Hinojosa, Milton
Published in 2010
Repository
20
Published in 2008
Repository