Quasicrossings of potential curves in the two-Coulomb-center problemViktor M. Khmara, Michal Hnatič, Volodymyr Yu. Lazur and Oleksandr K. ReityEur. Phys. J. D, 72 2 (2018) 39DOI: https://doi.org/10.1140/epjd/e2017-80227-2