Mié, 12/02/2003 / Sáb, 15/02/2003

European Society for Ecological Economics

Mié, 26/03/2003 / Sáb, 29/03/2003

Diputación Provincial de Alicante

Mar, 06/05/2003 / Sáb, 10/05/2003

Mié, 04/06/2003 / Sáb, 07/06/2003

Universidad de León; GEI, Grupo de Especies Invasoras

Dom, 25/04/2004 / Vie, 30/04/2004

European Geophysical Union

Lun, 17/05/2004 / Vie, 21/05/2004

European Centre for River Restoration, ECRR; Croatian Waters; Croatian Ministry of Environmental Protection and Physical Planning and the State Water Directorate

Mar, 15/06/2004 / Vie, 18/06/2004

International Association of Hydrogeologists; UNESCO; University of Silesia; Commission on Groundwater Protection

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

American Society of Civil Engineers

Mié, 05/11/2003 / Vie, 07/11/2003

Departamento de Derecho del Medio Ambiente de la Universidad Externado de Colombia

Sáb, 24/07/2004 / Mié, 28/07/2004

Soil and Water Conservation Society