@article{ZVMMF_1971_11_1_a6,
     author = {B. M. Budak and E. M. Berkovich},
     title = {The problems of optimal control for differential equations with discontinuous right hand sides},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {51--64},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1971_11_1_a6/}
}