@article{DE_1981_17_12_a2,
     author = {V. N. Kalinin},
     title = {A problem of optimal control of active moving objects},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2136--2143},
     publisher = {mathdoc},
     volume = {17},
     number = {12},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_12_a2/}
}