The importance of protein type and protein to carbohydrate ratio for survival and ovarian activation of caged honeybees (Apis mellifera scutellata)Christian W.W. Pirk, Chiraag Boodhoo, Hannelie Human and Susan W. NicolsonApidologie, 41 1 (2010) 62-72DOI: https://doi.org/10.1051/apido/2009055