@article{DE_1979_15_9_a1,
     author = {\`E. M. Vaisbord and V. I. Zhukovskii},
     title = {A hierarchical differential two-person game},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1548--1561},
     publisher = {mathdoc},
     volume = {15},
     number = {9},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_9_a1/}
}