Laurinčikas, Antanas, Darius Šiaučiūnas, and Monika Tekorė. “Joint Universality of Periodic Zeta-Functions With Multiplicative Coefficients. II”. Nonlinear Analysis: Modelling and Control 26, no. 3 (May 1, 2021): 550–564. Accessed May 17, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/23934.