@article{SM_1993_75_1_a8,
     author = {S. N. Kudryavtsev},
     title = {Some problems in approximation theory for a~class of functions of finite smoothness},
     journal = {Sbornik. Mathematics},
     pages = {145--164},
     publisher = {mathdoc},
     volume = {75},
     number = {1},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_75_1_a8/}
}