1. Svineholds okonomi. Landsud-valget for driftsøkonomi.;AAGAARD,1977
2. Factors affecting the onset of puberty, post-weaning estrus and blood hormone levels of Lacombe gilts;AHERNE;Can. J. Anim. Sci.,1976
3. Effect of lactation length and fasting on various reproductive phenomena of sows;ALLRICH;J. Anim. Sci.,1979
4. AUMAITRE, A., and ETIENNE, M. (1981). Proceedings Guelph Pork Symposium. Management of the Sow and Young Pig. University of Guelph, pp. 1–16
5. BANE, A., EINARSSON, S. and LARSSON, K. (1976).Effect of season on age at puberty in crossbred gilts in Sweden. VIIth Int. Congr. Anim. Reprod., Krakow, pp. 117–119