1. Optimum use of beef semen in a dual-purpose or dairy breeds;Andersson;Acta Agric. Scand.,1973
2. Sex ratio at birth — prospects for control;American Society of Animal Science,1971
3. Model calculation concerning economic optimalisation of A.I. breeding with cattle. 1. Economic value of genetic improvement in milk yield;Brascamp;Z. Tierzucht. Züchtungsbiol.,1973
4. Optimal estimation of breeding values;Cunningham,1972
5. The economic consequences of beef crossing in dual-purpose or dairy cattle populations;Cunningham;Livest. Prod. Sci.,1974