LANCONELLI, E. Subharmonic functions in sub-Riemannian settings. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 1, n. 1, 2010. DOI: 10.6092/issn.2240-2829/2252. Disponível em: https://mathematicalanalysis.unibo.it/article/view/2252. Acesso em: 28 apr. 2024.