@article{INTF_1989_42_a0, author = {N. K. Nikol'skii and V. P. Havin}, title = {{\CYRP}{\cyrr}{\cyre}{\cyrd}{\cyri}{\cyrs}{\cyrl}{\cyro}{\cyrv}{\cyri}{\cyre}}, journal = {Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Fundamental'nye Napravleniya}, pages = {5}, year = {1989}, volume = {42}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/INTF_1989_42_a0/} }