Balčiūnas, A., V. Franckevič, V. Garbaliauskienė, R. Macaitienė, and A. Rimkevičienė. “Universality of Zeta-Functions of Cusp Forms and Non-Trivial Zeros of the Riemann Zeta-Function”. Mathematical Modelling and Analysis, vol. 26, no. 1, Jan. 2021, pp. 82-93, doi:10.3846/mma.2021.12447.