Popov, M., I. V. Zavislyak, and G. P. Golovach. “MODIFIED ELLIPTICAL COORDINATE SYSTEM FOR PROBLEMS OF MATHEMATICAL PHYSICS WITH ELLIPTICAL SYMMETRY CYLINDER”. Radio Electronics, Computer Science, Control, no. 2 (September 25, 2024): 16. Accessed April 4, 2025. https://ric.zp.edu.ua/article/view/312172.