CUPINI, G.; LANCONELLI, E. On the surface average for harmonic functions: a stability inequality. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 14, n. 2, p. 129–138, 2023. DOI: 10.6092/issn.2240-2829/18860. Disponível em: https://mathematicalanalysis.unibo.it/article/view/18860. Acesso em: 9 may. 2024.