VARBANETS, P. D.; DADAYAN, Z. Yu. On the Average Value of a Generalized Pillai Function over $\mathbb{Z} [i]$ in the Arithmetic Progression. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 6, p. 755–764, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2460. Acesso em: 11 apr. 2025.