@article{DE_1984_20_12_a25,
     author = {M. G. Muradyan},
     title = {Periodic solutions of a matrix {Riccati} equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2176--2178},
     publisher = {mathdoc},
     volume = {20},
     number = {12},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_12_a25/}
}