@article{IVM_1997_4_a2,
     author = {E. G. D'yakonov},
     title = {Estimation of the {Kolmogorov} $N$-widths for certain compacts in the strengthened {Sobolev} spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {32--50},
     publisher = {mathdoc},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1997_4_a2/}
}