@article{DAN_1958_119_6_a10,
     author = {A. S. Markus},
     title = {On holomorphous operator functions},
     journal = {Doklady Akademii Nauk},
     pages = {1099--1102},
     publisher = {mathdoc},
     volume = {119},
     number = {6},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_119_6_a10/}
}