11th International Symposium of the ICP-BR Bee Protection Group ; Wageningen, (The Netherlands), November 2 - 4, 2011.
Oomen, Pieter A. ; Thompson, Helen ; International Symposium Hazards of Pesticides to Bees Wageningen ; Julius Kühn-Institut ; International Commission for Plant-Bee Relationships / Bee Protection Group
Quedlinburg : Julius Kühn-Inst., Bundesforschungsinst. für Kulturpflanzen, 2012