@article{ZVMMF_1987_27_5_a18,
     author = {M. M. Potapov and A. V. Razgulin},
     title = {On a nonlinear hyperbolic optimal control problem},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {793--794},
     publisher = {mathdoc},
     volume = {27},
     number = {5},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_5_a18/}
}