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Tarazona, JV; Fresno, A; Aycart, S; Ramos and Vega, MM. 1999. “Spanish proposal for the development of hazard classification criteria for the terrestrial environment”. En: “Approaches for a hazard identification-classification system for the terrestrial environment”. Edited by Vega, MM; Berthold, A; Clausen, H; Gingnagel, P; Fresno, A; Aycart, S, Ramos, C; Berggren, E and Tarazona, JV. Published by the European Chemical Bureau (ECB). European Commission. April. 160-169 pp.
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Vega, MM y Angulo, E. 1997. “Strategies for the assessment of soils fertilized with manure”. PORCI, 41: 37-46.
Vega, MM y de las Fuentes, L. 1996. “An approach for the integral management of slurries”. PORCI, 31: 19-25.