GATH, Y. . A. On an analogue of the Gauss circle problem for the Heisenberg group. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 23, n. 2, p. 645-717, 2022. DOI: 10.2422/2036-2145.202006_011. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/4934. Acesso em: 20 feb. 2026.