@article{ZVMMF_1968_8_6_a3,
     author = {G. K. Zakharov and V. I. Plotnikov},
     title = {Linear time-optimal problems with two groups of control parameters},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1196--1207},
     year = {1968},
     volume = {8},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1968_8_6_a3/}
}