Ziv, G., and M. J. Paape. “Effect of Abraded Intramammary Device (IMD) on Milk Somatic Cell Count and Intramammary Infection”. The Bovine Practitioner, vol. 1985, no. 20, Nov. 1985, pp. 102-5, doi:10.21423/bovine-vol1985no20p102-105.