Kononenko, Larisa. “The Identification Problem for a Nonsingular System of Ordinary Differential Equations With Fast and Slow Variables”. Mathematical notes of NEFU 28, no. 2 ( ): 3-15. Accessed September 13, 2024. https://mzsvfu.ru/index.php/mz/article/view/the-identification-problem-for-a-nonsingular-system-of-ordinary.