1. Cytomorphological Investigations into the Spermiocytogenesis of Bulls with Normal Fertility and Bulls with Acquired Disturbances in Spermiogenesis;Knudsen;Acta Pathol. Microbiol. Scand., Supplement,1954
2. The Effect of Transport on Spermatogenesis and Excretion of Neutral Steroids in the Urine of Bulls;Meschaks,1953
3. Effect of Transportation upon Fertility of Dairy Bulls;Willett;J. Dairy Sci.,1953