BEKMAGANBETOV, K.A.; KERVENEV, K.Ye.; TOLEUGAZY, Ye. Order of the trigonometric widths of the Nikol’skii-Besov classes with mixed metric in the metric of anisotropic Lorentz spaces. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 97, n. 1, p. 17–26, 2020. DOI: 10.31489/2020m1/17-26. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/325. Acesso em: 2 jul. 2025.