The role of the common agricultural policy in maintaining high nature value farming systems in Europe

von Hellegers, Petra J. G. J.
Veröffentlicht in Regional sustainability (1999)

Environmental policy for the control of nitrate pollution at farm level in the European Union

von Hellegers, Petra J. G. J.
Veröffentlicht in The implementation of nitrate policies in Europe (1997)

The impact of environmental policy on nitrogen balances at farm level in the European Union

von Hellegers, P.J.G.J.
Veröffentlicht 1996

Technology adoption and the impact on average productivity

von Hellegers, Petra J. G. J.
Veröffentlicht in Economics of innovation and new technology (2011)

Policy instruments for groundwater management for agriculture and nature in the Netherlands

von Hellegers, Petra J. G. J.
Veröffentlicht in Current issues in the economics of water resource management (2002)

Policy instruments for groundwater management in the Netherlands

von Hellegers, Petra J. G. J.
Veröffentlicht in Environmental & resource economics (2003)

Water pricing in Haryana, India

von Hellegers, Petra J. G. J.
Veröffentlicht in Irrigation water pricing (2007)

Water pricing in Tadla, Morocco

von Hellegers, Petra J. G. J.
Veröffentlicht in Irrigation water pricing (2007)

Dynamics of agricultural groundwater extraction

von Hellegers, Petra J. G. J.
Veröffentlicht in Ecological economics (2001)