1. Ahmed J. S., Diesing L., Ouhelli H. &Schein E. (1988). The role of antibodies in immunity againstTheileria annulata infection in cattle.Zbl. Bakt. Hyg. (A).267, 425–431.
2. Ahmed J. S., Hartwig H., Rothert M., Steuber S., &Schein F. (1989a). Cytotoxicity and production of interleukin-2 and gamma-interferon by peripheral blood lymphocytes ofT. annulata-infected cattle.Immunobiology14 (Suppl), 175.
3. Ahmed J. S., Rothert M., Steuber S. &Schein E. (1989b).In vitro proliferative and cytotoxic response of PBL fromTheileria annulata-immune cattle.Journal of Veterinary Medicine. (B).36, 584–592.
4. Ahmed J. S., Schop B., Hugel F-U., Campbell J. D., Spooner R. L. & Tait A. (1995). Immunohistochemical demonstration ofTheileria annnulata schizonts using the alkaline phosphatase anti-alkaline phophatase (APAAP) method. In: Proceedings of the third coordination Meeting of the European Union on Tropical Theileriosis (Fds: R. S. Spooner and J. D. Campbell), Antalya, PP. 52–54.
5. Bishop R., Sohanpal B., Karikui D. P., Young A. S., Nene V., Allsop B. A., Spooner P. R., Dolan T. T. &Morzaria S. (1992). Detection of carrier state inTheileria parva-infected cattle by polymerase chain reaction.Parasitology104, 215–232.