@article{DAN_1963_149_4_a3,
     author = {R. S. Ismagilov},
     title = {On the spectrum of {Toeplitz} matrices},
     journal = {Doklady Akademii Nauk},
     pages = {769--772},
     year = {1963},
     volume = {149},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_149_4_a3/}
}