1. Seasonal fluctuations of nematode populations in breeding ewes and lambs;Ayalew;Canadian Journal of Comparative Medicine,1973
2. The seasonal incidence of inhibition of development of Haemonchus contortus;Connan;Research in Veterinary Science,1971
3. Observations on the effectiveness of phenothiazine in the control of gastrointestinal nematodes of sheep;Drudge;Annual Report of the Kentucky Agriculture Experimental Station,1954
4. Observations on an outbreak of clinical parasitism in ewes during the winter months;Gibbs;Canadian Veterinary Journal,1964
5. Some observations on the spring rise phenomenon in sheep of Haryana (India);Gupta;Indian Veterinary Journal,1986