Laurinčikas, Antanas, Darius Šiaučiūnas, and Adelė Vaiginytė. 2020. “On Joint Approximation of Analytic Functions by Nonlinear Shifts of Zeta-Functions of Certain Cusp Forms”. Nonlinear Analysis: Modelling and Control 25 (1), 108–125. https://doi.org/10.15388/namc.2020.25.15734.