1. van Engelsdorp D, Meixner MD. A historical review of managed honey bee populations in Europe and the United States and the factors that may affect them. J Invertebr Pathol. 2010;103:S80–95.
2. Krell R. Value-added products from beekeeping. FAO Agricultural Services Bulletin No. 124. 1996.
http://www.fao.org/docrep/w0076e/w0076e00.htm
. Accessed 28 Oct 2015.
3. Genersch E. American foulbrood in honeybees and its causative agent, Paenibacillus larvae. J Invertebr Pathol. 2010;103:S10–9.
4. Gochnauer TA. Drugs fight foul brood disease in bees. Minn Farm Home Sci. 1951;9:15.
5. CCRVDF Electronic Working Group on Honey. Discussion paper on veterinary drugs in honey production, Joint FAO/WHO Food Standards Programme, Codex Committee on Residues of Veterinary Drugs in Food, Burlington, VT, USA. 2010.
ftp://ftp.fao.org/codex/meetings/CCRVDF/ccrvdf19/rv19_10e.pdf
. Accessed 15 Oct 2015.