A. M. Elhassan, M. A. Fadol, M. A. M. Salih, and A. R. M. El Hussein, “Bovine herpes virus-1 (BoHV-1) detection in dairy cattle with reproductive problems in Sudan”, J. Adv. Vet. Anim. Res, vol. 2, no. 2, pp. 185–189, May 2015.