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<response><item key="0"><nothing>Victor V. Zalipaev, Vladislav Kujdin, "Semiclassical approach for excitonic spectrum of Coulomb coupling between two Dirac particles", Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol. 477, pp. 20210098, 2021, [DOI: 10.1098/rspa.2021.0098] [SJR: 0.81]</nothing></item></response>
