@article{ZVMMF_1988_28_6_a7,
     author = {G. A. Virnovskii},
     title = {Optimal control of multiphase filtration flow in an oil layer},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {855--866},
     year = {1988},
     volume = {28},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1988_28_6_a7/}
}