- 2 resultaten gevonden
- (-) Albert de Vries (1)
Monique W.P. Bestman, William de Jong, Jan-Paul Wagenaar, Thari Weerts. 2017. Presence of avian inï¬‚uenza risk birds in and around poultry free-range areas in relation to range vegetation and openness of surrounding landscape.
G.J.H.M. van der Burgt, Albert de Vries. 1998. Development of farmers: search and learning processes throughout new ways of extension and research.