[1]
A. E. Zernov, “Qualitative Analysis of an Implicit Singular Cauchy Problem”, Ukr. Mat. Zhurn., vol. 53, no. 3, pp. 302–310, Mar. 2001, Accessed: Apr. 09, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/4253