ALBANO, P. On the Subelliptic Eikonal Equation. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 8, n. 1, p. 73–89, 2017. DOI: 10.6092/issn.2240-2829/7798. Disponível em: https://mathematicalanalysis.unibo.it/article/view/7798. Acesso em: 29 apr. 2024.