1. Alexander, R. A.: The propagation of bluetongue virus in the developing chick embryo with particular reference to the temperature of incubation. Onderstepoort J. vet. Sci. Anim Ind.22, 7–26 (1947).
2. Alexander, R. A.: Bluetongue as an international problem. Bull. Off. int. Epiz.51, 432–439 (1959).
3. Alexander, R. A., and D. A. Haig: The use of egg attenuated bluetongue virus in the production of a polyvalent vaccine for sheep. A. Propagation of the virus in sheep. Onderstepoort J. vet. Res.25, 3–15 (1951).
4. Alexander, R. A., D. A. Haig, and T. F. Adelaar: The attenuation of bluetongue virus by serial passage through fertile eggs. Onderstepoort J. vet. Sci. Anim. Ind.21, 231–241 (1947).
5. Alexander, R. A., W. O. Neitz, T. F. Adelaar, and D. A. Haig: A review of the bluetongue problem. J. S. Afr. vet. med. Ass.18, 51–58 (1947).