REFERENCES
- Angelov S. (1951) Brucelozata po jivotnite i choveka, Sofia, BAS (in bulgarian).
- Anonimus (1986) Mediterranean Zoonosis Control Center.
- Anonimus, WHO (1992) Mediterranean Zoonosis Control Center.
- Christoforov L., Vachev B. (1956) Sb. n.i. instituti MZ, 6, 187–189 (in bulgarian).
- Dimitrov N. (1962) Izv. vet. inst. zarazni i parazitni bolesti, Sofia, 6, 213–232 (in bulgarian).
- Gelev I. (1956) Izv. vet. inst. zarazni i parazitni bolesti, Sofia, 6, 163–165 (in bulgarian).
- Kostov G. (2000) Vet. med. novini, № 10–11, 11–13 (in bulgarian).
- Mateev M., Tzonev Tz., Lutzkanov D., Kistev V. (1962) Izv. CVIZPB, Sofia, № 5, 81–95 (in bulgarian).
- Madkour M.M., Gargani G. (1990) Brucellosis, № 5, 12–25.
- Milanov V.M., Chilev D. Krstev V., Mateev M. (1966) Vet. med. nauki, № 2, 149–154 (in bulgarian).
- Nefiatova N. Nauchni trudove na CVIZPB, Sofia, v. II, 129–131 (in bulgarian).
- Chilev D., Shoilev I., Jeliazkov D. Nauchni trudove na CVIZPB, Sofia, v. II. 133–139, 160 (in bulgarian).
- Chilev D., Mateev M. (1962) Prouchvania na izoliranite v Burgaski okrag stamove brucela, Izv. CVIZPB, no 6, p. 109–113 (in bulgarian).
- Chenchev I., Genev Ch. Christoforov L., Dimitrov N., Christchev G., Daskalov P. (1962) Izv. na CIZPB, 6, 120–141 (in bulgarian).