Relativistic mask method for electron momentum distributions after ionization of hydrogen-like ions in strong laser fieldsDmitry A. Tumakov, Dmitry A. Telnov, Günter Plunien, Vladimir A. Zaytsev and Vladimir M. ShabaevEur. Phys. J. D, 74 9 (2020) 188DOI: https://doi.org/10.1140/epjd/e2020-10311-5