@article{MZM_1984_36_3_a4,
     author = {V. A. Baskakov},
     title = {Comparison of the orders of approximation of the function classes $W^rH_\omega$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {319--328},
     publisher = {mathdoc},
     volume = {36},
     number = {3},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_3_a4/}
}