AUHD - Clauss,M.; Sauter-Louis,C.; Chaher,E.; Pottgießer,C.; Goebel,S.; Selhorst,T.; Wichmann,H.E.; Klee,W.; Kienzle,E. - Investigations of the potential risk factors associated with cases of bovine spongiform encephalopathy in Bavaria, Germany - The Veterinary Record 2006 Apr 15; 158(15): 509-13