@article{DE_1972_8_8_a24,
     author = {V. N. Laptinskii and V. V. Pugin},
     title = {Certain special transformations of matrix differential equations of {Riccati} type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1511--1514},
     publisher = {mathdoc},
     volume = {8},
     number = {8},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_8_a24/}
}