Varbanets, P.D. and Dadayan, Z.Y. (2013) “On the Average Value of a Generalized Pillai Function over $\mathbb{Z} [i]$ in the Arithmetic Progression”, Ukrains’kyi Matematychnyi Zhurnal, 65(6), pp. 755–764. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2460 (Accessed: 10 April 2025).