@article{IIGUM_2015_14_a1,
     author = {R. M. Batalin and V. A. Terletskiy},
     title = {Optimal control in epidemic models of transmissive diseases with {SEI-SEIR} systems},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {18--30},
     publisher = {mathdoc},
     volume = {14},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2015_14_a1/}
}