BELTRAN, D.; GUO, S.; HICKMAN, J.; SEEGER, A. The circular maximal operator on Heisenberg radial functions. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 23, n. 2, p. 501-568, 2022. DOI: 10.2422/2036-2145.202001_006. Disponível em: http://20.103.181.36/index.php/annaliscienze/article/view/4952. Acesso em: 27 may. 2025.