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Workshop on medicines for bees
(2010)
Scientific opinion on the science behind the development of a risk assessment of plant protection products on bees ( Apis mellifera , Bombus spp. and solitary bees) : EFSA Panel on Plant Protection Products and their Residues (PPR)
(2012)
Importation of African-Brazilian honeybees : hearing before the Subcommittee on Agricultural Research and General Legislation of the Committee on Agriculture and Forestry, United States Senate, Ninety-fourth Congress, first session, on S. 18 ... June 3, 1975
(1975)