@article{DE_1978_14_9_a3,
     author = {P. B. Gusyatnikov and Yu. S. Ledyaev},
     title = {A small parameter in a differential evasion game},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1566--1575},
     publisher = {mathdoc},
     volume = {14},
     number = {9},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_9_a3/}
}