@article{DVMG_2001_2_1_a4,
     author = {G. Sh. Tsitsiashvili and M. A. Osipova},
     title = {Transition phenomena in mathematical theory of epidemic},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {58--67},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2001_2_1_a4/}
}