@article{DE_1976_12_12_a3,
     author = {A. B. Kurzhanskii and I. Ya. Pishchulina},
     title = {Minimax filtering in the case of quadratic {constraints.~III}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2149--2158},
     publisher = {mathdoc},
     volume = {12},
     number = {12},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_12_a3/}
}