REFERENCES
- Buyst, H. (1977). Annates de la Société belge de Médecine Tropicale, 57, 201–211.
- Carmichael, J. (1934). Annals of Tropical Medicine and Parasitology, 28,41–45.
- Chandler, R. L. (1952). Annals of Tropical Medicine and Parasitology, 46, 127–134.
- Culbertson. J. T. (1938). Journal of Parasitology, 24, 65.
- Culbertson, J. T. (1939). Journal of Parasitology, 25, 181.
- Culbertson, J. T. (1940). Journal of Immunology, 38, 51.
- Drager, N. & Mehlitz, D. (1978). Tropenmedizin und Parasitologie, 29, 223–233.
- Fey, H. & Hunyady, G. (1962). Berliner und Münchener Tierarztliche Wochenschrift, Berlin, 75, 466–467.
- Fiennes, R. N. T. W. (1953). British Veterinary Journal, 109, 330–344.
- Fiennes, R. N. T. W. (1970). The African Trypanosomiases, ed. H. W. Mulligan, pp. 729–750. London: Allen and Unwin.
- Fiennes, R. N. T. W., Jones, E. R. & Laws, S. G. (1946). Journal of Comparative Pathology and Therapeutics, 56, 1–27.
- Gillin, F. D., Reiner, D. & Wang, S. C. (1983). Science, 221, 1290–1292.
- Ilrad (1983). International Laboratory for Research on Animal Diseases: Annual Report. 36–39.
- Kolodny, M. H. (1939). American Journal of Hygiene, 30, 19.
- Kruse, V. (1970). Animal Production, 12, 619–626.
- Lancet (1981) Editorial, i, 1192–1193.
- Lanfranchini, A. (1915). Bulletin de la Société de Pathologie Exotique, 8, 438.
- Logan, E. F. (1977). British Veterinary Journal, 133, 120–125.
- Rickman, L. R., Kolala, F. & Kanyangala, S. (1984). Annal of Tropical Medicine and Parasitology, 78, 427–430.
- Stephens, L. E. (1966). Annals of Tropical Medicine and Parasitology, 60, 230–246.
- Whitelaw, D. D. & Urquhart, G. M. (1985). Parasite Immunology, 7, 301–314.
- Whitelaw, D. D. & Jordt, T. (1985). Annates de la SociétÉ Belge de Médecine Tropicale, 65, 199–205.
- Whiteside, E. F. (1962). Drugs, Parasites and Hosts, ed. L. G. Goodwin & R. H. Nimmo-Smith, pp. 116–141. London: Churchill.