@article{ZVMMF_1970_10_1_a4,
     author = {G. K. Zakharov and V. I. Plotnikov},
     title = {Optimal processes with two groups of control parameters},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {55--66},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1970_10_1_a4/}
}