1

book
Published in 2002
Repository Repositorio Universidad Politécnica Salesiana
2

book
Published in 1993
Repository Repositorio Universidad Politécnica Salesiana
3

book
Published in 2002
Repository Repositorio Universidad Politécnica Salesiana
8

book
Published in 2010
Repository Repositorio Universidad Politécnica Salesiana
9

book
Published in 2010
Repository Repositorio Universidad Politécnica Salesiana
10

11

13

masterThesis
Published in 2002
Repository Repositorio Universidad Andina Simón Bolivar
18

book
Published in 1993
Repository Repositorio Universidad Politécnica Salesiana