1. Book of Tables 2008: Feed Norms for Livestock and Feed Values of Feed,2008
2. Environmental hotspot identification of organic egg production;Dekker,2009
3. Ecological and economic evaluation of Dutch egg production systems;Dekker;Livestock Science,2011
4. Council regulation (EC) No 2092/91 of 24 June 1991, on organic production of agricultural products and indications referring thereto on agricultural products and foodstuffs;Official Journal of the European Communities, Brussels,1991