This paper is archived under Volume 19 / Number 2 (April – June 2009).
Julio Cañón
Department of Hydrology and Water Resources and SAHRA
The University of Arizona
Grupo GAIA
Universidad de Antioquia, Medellín
Juan Valdes
Civil Engineering and Engineering Mechanics and SAHRA
The University of Arizona
Javier Gonzalez
Universidad de Castilla La Mancha