@article{Ovsiyuk2022st¨uckelberg, author={Ovsiyuk, E.M. and Safronov, A.P. and Ivashkevich, A.V. and Semenyuk, O.A.}, title={St¨uckelberg particle in external magnetic field. The method of projective operators}, journal={Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences}, publisher={FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"}, year={2022}, pages={69-78}, volume={0}, issue={5}, }