@article{Romanyuk_Romanyuk_2012, title={Best bilinear approximations of functions from Nikolskii-Besov classes}, volume={64}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/2608}, abstractNote={We obtain exact-order estimates for the best bilinear approximations of Nikol’skii-Besov classes in the spaces of functions $L_q (\pi_{2d})$.}, number={5}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={Romanyuk, A. S. and Romanyuk, V. S.}, year={2012}, month={May}, pages={685-697} }