Курбет, Г. Ю., and К. О. Буряченко. “GALYRKIN’S METHOD IN INVERSTIGATIONS OF INVERSE BOUNDARY PROBLEMS FOR WAVE EQUATIONS”. Cherkasy University Bulletin: Physical and Mathematical Sciences 1, no. 1 (June 25, 2021). Accessed May 30, 2026. https://phys-ejournal.cdu.edu.ua/article/view/4227.