LIBGRPP: A Library for the Evaluation of Molecular Integrals of the Generalized Relativistic Pseudopotential Operator over Gaussian Functions. - Alexander V. Oleynichenko; Andréi Zaitsevskii; Nikolai S. Mosyagin; Alexander N. Petrov; Ephraim Eliav; Anatoly V. Titov (Symmetry, 2023)