AKHAZHANOV, T.B.; Bokayev N.А.; MATIN, D.T.; AKTOSUN, T. Coefficients of multiple Fourier-Haar series and variational modulus of continuity: An Erratum to this article was published in issue 1(113) dated March 29, 2024. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 112, n. 4, p. 21–29, 2023. DOI: 10.31489/2023m4/21-29. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/602. Acesso em: 2 jul. 2025.