TOMOVSKI, Z. Generalization on some theorems of $ L^1 $-convergence of certain trigonometric series. Tamkang Journal of Mathematics, [S. l.], v. 39, n. 1, p. 63–74, 2008. DOI: 10.5556/j.tkjm.39.2008.46. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/46. Acesso em: 25 apr. 2024.