1. Tooth eruption patterns in New Zealand sheep breeds;Aitken,1982
2. Scottish Island Sheep, the ARK XI;Allan,1984
3. The effects of stocking rate and grazing management on fat lamb production;Arnold,1962
4. The influence of breed and plane of nutrition on the chronology of teeth eruption in sheep;Arrowsmith;S. Afr. J. Anim. Sci.,1974
5. The Sheep Project: investigating the effect of breeding on skeletal maturation, growth, size and shape in unimproved Shetland ewes of known age, nutrition and breeding status;Baker,2014