Skrypnik WI. Coulomb planar periodic motion of equal charges in the field of attractive centers and a constant magnetic field . Dopov. Nac. akad. nauk Ukr. [Internet]. 2016 Mar. 28 [cited 2026 Jul. 11];(3):19-25. Available from: https://nasu-periodicals.org.ua/index.php/dp/article/view/8596