[1]
Konohrai, A.F. and Stasyuk, S.A. 2008. Best <i>M</i>-term trigonometric approximations of the classes of periodic functions of many variables in the space <i>L<sub>q</sub&gt;. Ukrains’kyi Matematychnyi Zhurnal. 60, 9 (Sep. 2008), 1196 -.