MUGHETTI, M. Some advances in analytic hypoellipticity. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 14, n. 2, p. 101–128, 2023. DOI: 10.6092/issn.2240-2829/18859. Disponível em: https://mathematicalanalysis.unibo.it/article/view/18859. Acesso em: 9 may. 2024.