1. The Role of ureaplasma infection in bovine reproductive disease;Doig;The Compendium on Continuing Education,1981
2. Mycoplasmas and ureaplasmas in infertility and abortion;Friberg;Fertility and Sterility,1980
3. Observation of Haemophilus somnus infection on an agent producing reproductive diseases: infertility and abortion;Klavano,1980
4. Bovine reproductive disorders associated with ureaplasma, mycoplasma, Haemophilus somnus and chlamydia;Lein,1982
5. An investigation into the prevalence, pathogenesis and pathology of Haemophilus somnus infections of the reproductive tract in cows;Miller,1980