@article{AA_1997_9_2_a3,
     author = {N. Ya. Kruglyak},
     title = {Piecewise polynomial approximation with free nodes, and $F_\alpha$-characteristics for $\alpha\in[1-1/n,1)$},
     journal = {Algebra i analiz},
     pages = {58--72},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1997_9_2_a3/}
}