Preliminary Results: A Survey of Honey Bee Colonies Losses in the U.S. Between September 2008 and April 2009 http://canr.udel.edu/maarec/wp-content/uploads/sites/18/2011/01/PrelimLosses2009.pdf
AIA Preliminary Survey Results – Survey goal to determine distribution of various bee parasites and pathogens http://maarec.psu.edu/pdfs/AIASurveyResultsApril08.pdf
