1. The postnatal development of the reproductive organs in bulls with special references to puberty;Abdel-Roaouf;Acta Endocrinol,1960
2. Persistence of the penile frenulum in young bulls;Ashdown;Vet Rec,1962
3. The adherence between the free end of the bovine penis and its sheath;Ashdown;J Anat,1960
4. Manual for Breeding Soundness Examination of Bulls;Ball;J Soc Therio,1983
5. Scrotal circumference in yearling hereford bulls: adjustment factors, heritabilities and genetic, environmental and phenotypic relationships with growth traits;Bourdon;J Anim Sci,1986