G. Denny

发表

A. Ghani, C. Donnelly, N. Ferguson, 1998, Proceedings of the Royal Society of London. Series B: Biological Sciences.

F. Menzies, D. Abernethy, A. Roberts, 2006, Veterinary microbiology.

D. Pfeiffer, S. McDowell, R. Watt, 2006, Veterinary Record.