DiGiacomo, R. F., E. Studer, J. F. Evermann, and N. L. Huber. “Impact of Herd Additions on Bovine Leukosis Virus Infection in a Commercial Dairy Herd”. The Bovine Practitioner, no. 21, Nov. 1986, pp. 110-1, doi:10.21423/bovine-vol0no21p110-111.