1. Bailey L. (1957) Comb fumigation for Nosema disease, Am. Bee J. 97, 24–26.
2. Cantwell G.E. (1970) Standard methods for counting Nosema spores, Am. Bee J. 110, 222–223.
3. Cantwell G.E., Shimanuki H. (1969) Heat treatment as a means of eliminating Nosema and increasing production, Am. Bee J. 109, 52–54.
4. Chen Y., Evans J.D., Smith I.B., Pettis J.S. (2008) Nosema ceranae is a long-present and widespread microsporidian infection of the European honey bee (Apis mellifera) in the United States, J. Invertebr. Pathol. 97, 186–188.
5. Europa (2009) Residues of Veterinary Medicinal Products-Third Countries. Available from http://ec.europa.eu/food/food/chemicalsafety/residues/third_countries_en.htm (accessed 31 December 2009).