@article{DE_1971_7_8_a6,
     author = {A. B. Kurzhanskii},
     title = {Differential approach games in systems with lag},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1398--1409},
     publisher = {mathdoc},
     volume = {7},
     number = {8},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_8_a6/}
}