@article{DAN_1980_254_5_a10,
     author = {Yu. E. Linke},
     title = {An application of the {Steiner} point for investigating a class of sublinear operators},
     journal = {Doklady Akademii Nauk},
     pages = {1069--1072},
     publisher = {mathdoc},
     volume = {254},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_254_5_a10/}
}