@article{DE_1970_6_5_a2,
     author = {N. N. Petrov},
     title = {A proof of the existence of a value for a pursuit game with restricted time},
     journal = {Differencialʹnye uravneni\^a},
     pages = {784--797},
     publisher = {mathdoc},
     volume = {6},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_5_a2/}
}