Sacks, Jeffrey J. & Sinclair, Leslie & Gilchrist, Julie & Golab, Gail C. & Lockwood, Randall: Breeds of dogs involved in fatal human attacks in the United States between 1979 and 1998. Journal of the American Veterinary Medical Association, 15.9.2000, 217. vsk, nro 6, s. 836–840. doi:10.2460/javma.2000.217.836Artikkelin verkkoversio. Viitattu 9.10.2017. (englanniksi)
Sacks, Jeffrey J. & Sinclair, Leslie & Gilchrist, Julie & Golab, Gail C. & Lockwood, Randall: Breeds of dogs involved in fatal human attacks in the United States between 1979 and 1998. Journal of the American Veterinary Medical Association, 15.9.2000, 217. vsk, nro 6, s. 836–840. doi:10.2460/javma.2000.217.836Artikkelin verkkoversio. Viitattu 9.10.2017. (englanniksi)
vieraslajit.fi
Maa- ja metsätalousministeriö: Koirasusivieraslajit.fi. 2019. Viitattu 19.5.2020.