@article{DAN_1975_223_6_a1,
     author = {B. G. Gabdulkhaev},
     title = {Approximation in $H$-spaces and applications},
     journal = {Doklady Akademii Nauk},
     pages = {1293--1296},
     publisher = {mathdoc},
     volume = {223},
     number = {6},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_6_a1/}
}