@article{IVM_1999_1_a3,
     author = {Yu. V. Kozhevnikov},
     title = {Adaptive approximation of functions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {18--24},
     publisher = {mathdoc},
     number = {1},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1999_1_a3/}
}