VUKOVIĆ, Mirjana; ILIĆ-GEORGIJEVIĆ, Emil; STEVANOVIĆ, Olivera. On an Application of Parseval’s Formula to Problems of $G_\theta^\varkappa$-summability of Eigenfunction Expansion of the Laplacian Operator. Sarajevo Journal of Mathematics, [S. l.], v. 12, n. 2, p. 267–276, 2024. DOI: 10.5644/SJM.12.2.12. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/194. Acesso em: 18 jan. 2025.