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Theo Engelen, Onno Boonstra, Angelique Janssens (eds.), Levenslopen in transformatie. Liber Amicorum bij het afscheid van prof. dr. Paul M.M. Klep; Paul M.M. Klep, Gezinssolidarite...
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Atlas de Belgique: tome 2, Paysages, monde rural et agriculture ; Atlas of Belgium, vol2: Landscapes, countryside and agriculture
The Precariousness of Walloon Peri-Urban Agricultural Lands
Sustainability of Rural Systems: Balancing Heritage and Innovation
Walloon Region: An agro-forestry landscape without farmers? ; Valonska Regija: Kmetijsko-Gozdarska Pokrajina Brez Kmeta?