Fedorov, Vladimir, and Marko Kostić. “On a Class of Abstract Degenerate Multi-Term Fractional Differential Equations in Locally Convex Spaces”. Eurasian Mathematical Journal 9, no. 3 (May 29, 2024). Accessed October 5, 2024. https://emj.enu.kz/index.php/main/article/view/123.