@article{ZVMMF_1982_22_4_a7,
     author = {M. S. Nikol'skii},
     title = {Construction of piecewise-constant control of pursuit in direct {Pontryagin} methods},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {840--849},
     publisher = {mathdoc},
     volume = {22},
     number = {4},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1982_22_4_a7/}
}