1.
Mitropolskiy YA, Khoma GP, Tsynalko PV. A periodic problem for the inhomogeneous equation of string oscillations. Ukr. Mat. Zhurn. [Internet]. 1997Apr.25 [cited 2024Nov.24];49(4):558–565. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5031