Osypova O, Pertsov A, Cherevko I. Decomposition and stability of linear singularly perturbed systems with two small parameters. Carpathian Math. Publ. [Internet]. 2021 Mar. 4 [cited 2024 Nov. 22];13(1):15-21. Available from: https://vps.pnu.edu.ua/index.php/cmp/article/view/4124