Mishura, Y. S., Hopkalo, O. M., & Zhelezniak, H. S. (2022). Elements of fractional calculus. Fractional integrals. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, 1, 11-19. https://doi.org/10.17721/1812-5409.2022/1.1