1. Multiple pregnancy diagnosis in sheep using pulsed video-fluoroscopy and a semiconductor video store;BEACH;New Zealand Journal of Experimental Agriculture,1982
2. Pregnancy diagnosis in the ewe by an ultrasonic rectal probe;DEAS;Veterinary Record,1977
3. The identification of single and multiple bearing ewes by ultrasonic imaging;FOWLER;Proceedings of the Australian Society of Animal Production,1980
4. The accuracy of ultrasonic imaging with real-time scanners in determining litter number in pregnant ewes;FOWLER;Proceedings of the Australian Society of Animal Production,1982
5. Multiple pregnancy diagnosis in sheep using an ultrasonic method;FUKUI;Veterinary Record,1984