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close this bookBiological farming in Europe - Agriculture biologique en Europe (REUR Technical Series 12) (1990)
close this folderSession 2 - Research in biological farming
Open this folder and view contentsSession 2,1 - Research structure in biological farming: general view, justification, development
Open this folder and view contentsSession 2,2 - Etudes comparatives en production végétale
Open this folder and view contentsSession 2,3 - Animal breeding within ecological constraints: taking dairy cattle and pig as examples