21
Published in 2007
Repository
22
23
Published in 1986
Repository
24
25
26
27
Published in 2008
Repository
28
Published in 2004
Repository
29
by Viera, William; Mejía, Paul; Noboa, Michelle; Obando, Javier; Sotomayor, Andrea; Vásquez C., Wilson; Viteri D., Pablo
Published in 2015
Repository
30
Published in 2012
Repository
31
by Viteri D., Pablo; León F., Juan; Vásquez C., Wilson; Encalada, Claudio; Martínez, Aníbal; Revelo, Jorge; Posso, Manuel; Hinojosa, Milton
Published in 2010
Repository
32
33
Published in 2008
Repository
34
35
36
37
Published in 2005
Repository
38
39
40