Kovalev, S. Y. Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity : [англ.] / S. Y. Kovalev, T. A. Mukhacheva, V. S. Kokorev … [et al.] // Virus Genes. — 2012. — Vol. 44, no. 2. — P. 217–224. — ISSN1572-994X. — doi:10.1007/s11262-011-0690-9. — PMID22095094.
N. Y. Uzcátegui, T. Sironen, I. Golovljova, A. E. Jääskeläinen, H. Välimaa1, Å. Lundkvist, A. Plyusnin, A. Vaheri, and O. Vapalahti. Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart (англ.) // Journal of General Virology. — 2012. — Vol. 93, no. 4. — P. 786—796. — ISSN1465-2099. — doi:10.1099/vir.0.035766-0. — PMID22205716.
Kovalev, S. Y. Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity : [англ.] / S. Y. Kovalev, T. A. Mukhacheva, V. S. Kokorev … [et al.] // Virus Genes. — 2012. — Vol. 44, no. 2. — P. 217–224. — ISSN1572-994X. — doi:10.1007/s11262-011-0690-9. — PMID22095094.
N. Y. Uzcátegui, T. Sironen, I. Golovljova, A. E. Jääskeläinen, H. Välimaa1, Å. Lundkvist, A. Plyusnin, A. Vaheri, and O. Vapalahti. Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart (англ.) // Journal of General Virology. — 2012. — Vol. 93, no. 4. — P. 786—796. — ISSN1465-2099. — doi:10.1099/vir.0.035766-0. — PMID22205716.
Kovalev, S. Y. Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity : [англ.] / S. Y. Kovalev, T. A. Mukhacheva, V. S. Kokorev … [et al.] // Virus Genes. — 2012. — Vol. 44, no. 2. — P. 217–224. — ISSN1572-994X. — doi:10.1007/s11262-011-0690-9. — PMID22095094.
N. Y. Uzcátegui, T. Sironen, I. Golovljova, A. E. Jääskeläinen, H. Välimaa1, Å. Lundkvist, A. Plyusnin, A. Vaheri, and O. Vapalahti. Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart (англ.) // Journal of General Virology. — 2012. — Vol. 93, no. 4. — P. 786—796. — ISSN1465-2099. — doi:10.1099/vir.0.035766-0. — PMID22205716.