1
article
Published in 2015
Repository Repositorio Universidad Técnica de Machala
2
article
Published in 2015
Repository Repositorio SENESCYT
3
article
by Gorenc, Klaus-Dieter; Peredo, Sandra; Pacurucu, Saúl; Llanos, Roberto; Vincente, Benjamı́n; López, Rodolfo; Abreu, Luis Felipe; Paez, Eduardo
Published in 1999
Repository Repositorio Universidad de Cuenca
4
article
Published in 1997
Repository Repositorio Universidad de Cuenca