Generalized tanh-shaped hyperbolic potential: bound state solution of Schrödinger equation H. I. Ahmadov, E. A. Dadashov, N. Sh. Huseynova and V. H. Badalov Eur. Phys. J. Plus, 136 2 (2021) 244 Published online: 22 February 2021 DOI: 10.1140/epjp/s13360-021-01202-8