Laurinčikas, Antanas, and Renata Macaitienė˙. “Joint Universality of the Riemann Zeta-Function and Lerch Zeta-Functions”. Nonlinear Analysis: Modelling and Control 18, no. 3 (July 25, 2013): 314–326. Accessed August 17, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/14012.