Thomas, Sanish, and Aswathy Mary Prince. “Solution of Lane Emden Equation for Polytropic Index N= 1 Using Numerical Iterative Series Approximation Method”. International Journal of Technical Innovation in Modern Engineering & Science 4, no. 7 (July 14, 2018): 1505–1509. Accessed January 9, 2025. https://ijtimes.com/index.php/ijtimes/article/view/1396.