J. de Graaff

Ratview: An interactive correction system for visual testing of anatomical drawings

Pleunes Willem Verhagen, J. de Graaff, 1997 .

Olive oil production and soil conservation in southern Spain, in relation to EU subsidy policies

J. de Graaff, J. Graaff, L. Eppink, 1999 .

Factors influencing adoption and continued use of long-term soil and water conservation measures in five developing countries

Aklilu Amsalu, Aad Kessler, Helena Posthumus, 2008 .

Implementation of contour vegetation barriers under farmer conditions in Burkina Faso and Mali

W. P. Spaan, J. de Graaff, J. Graaff, 2004 .

Decision support for selecting SLM technologies with stakeholders

Gudrun Schwilch, Felicitas Bachmann, J. de Graaff, 2012 .