1. An approach to the measurement of sexual behaviour and semen production of dairy bulls;Almquist,1956
2. Social position and behaviour of dairy heifers in yards;Beilharz;Anim. Behav.,1963
3. Studies on the social and sexual behaviour of bulls;Blockey,1975
4. Influence of a bull's serving capacity on herd fertility;Blockey;J. Anim. Sci.,1978
5. Observations on group mating of bulls at pasture;Blockey;Appl. Anim. Ethol.,1979