1. N. R. Akhunova, D. G. Deryabin, Yu. A. Brudastov, and O. S. Zhurlov,Zh. Mikrobiol., No. 4, 63–67 (1997).
2. O. V. Bukharin, Yu. A. Brudastov, and D. G. Deryabin,Klin. Lab. Diagn., No. 11–12, 68–70 (1992).
3. O. V. Bukharin, Yu. A. Brudastov, and D. G. Deryabin,Byull. Eksp. Biol. Med.,117, No. 6, 639–641 (1994).
4. T. M. Konyshkina,Zh. Mikrobiol., No. 11, 67–71 (1989).
5. G. F. Lakin,Biometry [in Russian], Moscow (1990).