TER ELST, A.; MAATI OUHABAZ, E. Partial Gaussian bounds for degenerate differential operators II. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 14, n. 1, p. 37-81, 2015. DOI: 10.2422/2036-2145.201201_005. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/369. Acesso em: 20 feb. 2026.