@article{ZVMMF_1998_38_9_a0,
     author = {G. V. Kanoveǐ and D. O. Logofet},
     title = {$D$-stability of 4-by-4 matrices},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1429--1435},
     publisher = {mathdoc},
     volume = {38},
     number = {9},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1998_38_9_a0/}
}