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2. Pneumonia in sheep;Alley;Vet. Annu.,1991
3. The effect of chemotherapeutic agents on the transmission of ovine chronic non-progressive pneumonia;Alley;N.Z. Vet. J.,1980
4. Chronic non-progressive pneumonia of sheep in New Zealand—a review of the role of Mycoplasma ovipneumoniae;Alley;N.Z. Vet. J.,1999
5. The isolation of Neisseria sp. from pneumonic sheep lungs;Alley;N.Z. Vet. J.,1970