@article{IM2_1967_1_2_a4,
     author = {Ya. L. Geronimus},
     title = {On a problem of {Szeg\"o,} {Kac,} {Baxter} and {Hirschman}},
     journal = {Izvestiya. Mathematics},
     pages = {273--289},
     year = {1967},
     volume = {1},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1967_1_2_a4/}
}