1
article
Published in 1996
Repository Repositorio Universidad Andina Simón Bolivar
2
article
by Rodriguez, Jenny; Echeverría, Fabrizio; Molina, César; Sonnelhozner, Stanislaus; Arias, Arturo; Apolo, Jorge; Calderón, Jorge
Published in 2003
Repository Repositorio Escuela Superior Politécnica del Litoral