K. Ravi, R. Murali, A. Ponmanaselvan, R. Veerasivsji. Hyers-Ulam Stability of $n^{th}$ Order Non-Linear Differential Equations with Initial Conditions. Int. J. Math. And Appl. [Internet]. 2016 Jun. 1 [cited 2025 Sep. 22];4(2 - C):121-32. Available from: https://ijmaa.in/index.php/ijmaa/article/view/1053