 | Up a level |
Berthoud, Hélène; Imdorf, Anton; Haueter, Monika; Radloff, Sarah; Neumann, Peter (2010). Virus infections and winter losses of honey bee colonies (Apis mellifera). Journal of apicultural research, 49(1), pp. 60-65. Cardiff: International Bee Research Association IBRA 10.3896/ibra.1.49.1.08
