@article{Pozharska2017ZB_IM,
author ={Pozharska, K. and (Shvai K.)},
title ={Estimates for the best {$M$}-term trigonometric approximations of classes {$L_{\beta,p}^\psi$} of periodic multivariable functions in the case of small smoothness in the space {$L_q$}},
journal={Transactions of Institute of Mathematics of the NAS of Ukraine}, 
number={3}, 
year={2017},
pages={293–318},
url={https://trim.imath.kiev.ua/index.php/trim/article/view/324},
volume={14},
}