J. Sommerfeldt, R. A. Müller, Аndrey Volotka, S. Fritzsche, A. Surzhykov, "Vacuum polarization and finite-nuclear-size effects in the two-photon decay of hydrogenlike ions", Physical Review A, vol. 102, 2020, [DOI: 10.1103/physreva.102.042811] [IF: 3.14, SJR: 1.39]