Skrypnik WI. Periodic and Bounded Solutions of the Coulomb Equation of Motion of Two and Three Point Charges with Equilibrium in the Line. Ukr. Mat. Zhurn. [Internet]. 2014May25 [cited 2024Apr.20];66(5):679–693. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/2169