ERIKSSON, S.-L.; ORELMA, H. A mean-value theorem for some eigenfunctions of the Laplace-Beltrami operator on the upper-half space. Annales Fennici Mathematici, [S. l.], v. 36, n. 1, p. 101–110, 2011. DOI: 10.5186/aasfm.2011.3606. Disponível em: https://afm.journal.fi/article/view/135338. Acesso em: 25 nov. 2024.