NGUYEN, Cuong Manh. Nonlinear approximations of functions having mixed smoothness. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 35, n. 2, p. 119–134, 2019. DOI: 10.15625/1813-9663/35/2/13578. Disponível em: https://jcc.vast.vn/jcc/article/view/13578. Acesso em: 4 nov. 2025.