Cherkasskiy, B. L. (1999). «A national register of historic and contemporary anthrax foci». Journal of Applied Microbiology. 87 (2): 192–195. PMID10475946. doi:10.1046/j.1365-2672.1999.00868.x
Cherkasskiy, B. L. (1999). «A national register of historic and contemporary anthrax foci». Journal of Applied Microbiology. 87 (2): 192–195. PMID10475946. doi:10.1046/j.1365-2672.1999.00868.x