Elvander, M., S. Alenius, and S. O. Jacobsson. “Severe Outbreaks of Respiratory Disease in Dairy Herds Caused by Bovine Respiratory Syncytial Virus”. The Bovine Practitioner, vol. 1991, no. 26, Sept. 1991, pp. 166-8, doi:10.21423/bovine-vol1991no26p166-168.