DI GIRONIMO, P.; GIANNETTI, F. Higher integrability of minimizers of degenerate functionals in Carnot–Carathéodory spaces. Annales Fennici Mathematici, [S. l.], v. 45, n. 1, p. 293–303, 2020. DOI: 10.5186/aasfm.2020.4509. Disponível em: https://afm.journal.fi/article/view/135857. Acesso em: 8 sep. 2024.