@article{ZVMMF_1998_38_1_a1,
     author = {V. I. Gel'fgat},
     title = {Commutation criterion for {Toeplitz} matrices},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {11--14},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1998_38_1_a1/}
}