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Impact of policies related to the nitrate directive on pig production in Flanders
Lauwers, Ludwig H., (1997)
Impacts of manure policies for the Netherlands
Helming, John F. M., (1997)
The implementation of nitrate policies in Europe : process of change in environmental policy and agriculture
Brouwer, Floor, (1998)
The impact of environmental policy on nitrogen balances at farm level in the European Union
Hellegers, Petra J. G. J., (1996)
The role of the common agricultural policy in maintaining high nature value farming systems in Europe
Hellegers, Petra J. G. J., (1999)
Dynamics of agricultural groundwater extraction
Hellegers, Petra J. G. J., (2001)