by Blake, N.A., Nelson, J.C.
Published in Proceedings of the IEEE (01.01.1970)

by Scott, P.R, Kinder, A.E, Blake, N.A, Hawe, C. (Department of Veterinary Clinical Studies, Royal (Dick) School of Veterinary Studies, Easter Bush, Roslin, Midlothian EH25 9RG (United Kingdom))
Published in Veterinary Record (United Kingdom) (1997)