Vie, 12/09/2003 / Dom, 14/09/2003

Riga Forum

Dom, 19/09/2004 / Vie, 24/09/2004

International Water Association (IWA)

Mié, 22/10/2003 / Vie, 24/10/2003

Mar, 11/11/2003 / Mié, 12/11/2003

National Water Quality Monitoring Council (EE.UU)

Mar, 18/11/2003 / Mié, 19/11/2003

Paper Technology Specialists (PTS)

Jue, 29/01/2004 / Vie, 30/01/2004

National Council for Science and the Environment

Dom, 27/06/2004 / Jue, 01/07/2004

American Society of Civil Engineers

Mié, 26/11/2003 / Sáb, 29/11/2003

Centro Educativo del Medio Ambiente CEMACAM Torre Guil. Caja de Ahorros del Mediterráneo

Mié, 28/01/2004 / Vie, 30/01/2004

National Institute of Technology - Warangal

Lun, 01/03/2004 / Mié, 03/03/2004

IHP/OHP Secretariat; Federal Institute of Hydrology (Alemania)