ANHF - Cranwell,M.P.; Hancock,R.D.; Hindson,J.R.; Hall,S.A.; Daniel,N.J.; Hopkins,A.R.; Wonnacott,B.; Vivian,M.; Hunt,P. - Bovine spongiform encephalopathy - The Veterinary Record 1988 Feb 20; 122(8): 190
AMNG - Wilesmith,J.W.; Wells,G.A.H.; Cranwell,M.P.; Ryan,J.B.M. - Bovine spongiform encephalopathy: epidemiological studies. - The Veterinary Record 1988 Dec 17; 123(25): 638-44