Forbes, E., Alagona, P. S., Adams, A. J., Anderson, S. E., Brown, K. C., Colby, J., Cooper, S. D., Denny, S. M., Hiroyasu, E. H. T., Heilmayr, R., Kendall, B. E., Martin, J. A., Hardesty-Moore, M., Mychajliw, A. M., Tyrrell, B. P., Welch, Z. S., (2020). Trends in Ecology & Evolution 35(7), 554-557. Elsevier Ltd, Oxford, UK. English language
Leipold, H. W., Hiraga, T., Dennis, S. M., (1993). Veterinary Clinics of North America, Food Animal Practice 9(1), 93-104. English language
Dennis, S. M., Bamford, V. W., (1966). Veterinary Record 79, 105-108. English language