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Rapport du groupe de travail "Activités agricoles et qualité des eaux". Tome 1 et 2
Author(s) : HENIN, S.
Author(s) : France. Ministère de l'Agriculture;France. Ministère de l'Environnement
Paris;Neuilly (FRA): Ministère de l'AgricultureMinistère de l'Environnement,1980

Calculation and Mapping of Critical Loads in Europe : Status Report 1993
Author(s) : DOWNING, Robert J. (ed.), HETTELINGH, Jean-Paul (ed.), DE SMET, Peter A. M. (ed.)
Author(s) : Netherlands. RIVM (National Institute of Public Health and Environmental Protection)
Bilthoven (NLD): RIVM,1993

Mineral balances in agriculture in the EU. Part I: the regional level. Contribution to the study "Standards on nitrate in the European Community: Processes of change in policy instruments and agriculture
Author(s) : SCHLEEF, K.H., KLEINHANß, W.
Author(s) : FAL (Federal Agricultural Research Centre). Institute of Farm Economics
Braunschweig (DEU): FAL,1994

Calculation and mapping of critical thresholds in Europe: Status Report 1995
Author(s) : POSCH, M. (ed.), SMET, P.A.M. (de) (ed.), HETTELINGH, J.P. (ed.), DOWNING, R.J. (ed.)
Author(s) : Netherlands. RIVM (National Institute of Public Health and Environment). Coordination Center for Effects
Bilthoven (NLD): RIVM,1995

Mineral balances at farm level in the European Union
Author(s) : BROUWER, F.M., GODESCHALK, F.E., HELLEGERS, P.J.G.J., KELHOLT, H.J.
Author(s) : LEI-DLO (Agricultural Economics Research Institute)
The Hague (NLD): LEI-DLO,1995
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