BRÜDERN, J.; D. WOOLEY, T. Correlation estimates for sums of three cubes. ANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, [S. l.], v. 16, n. 3, p. 789-816, 2016. DOI: 10.2422/2036-2145.201409_013. Disponível em: https://journals.sns.it/index.php/annaliscienze/article/view/466. Acesso em: 20 feb. 2026.