@article{DAN_1962_143_6_a12,
     author = {N. A. Sapogov},
     title = {On the norms of linear polynomial operators},
     journal = {Doklady Akademii Nauk},
     pages = {1286--1288},
     year = {1962},
     volume = {143},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_143_6_a12/}
}