Jassim MH, Al-Hayani WM. Combining Laplace transform and Variational iteration method for solving singular IVPs and BVPs of Lane–Emden type equation. WJCMS [Internet]. 2024 Jun. 30 [cited 2025 Aug. 21];3(2):8-18. Available from: http://wjcm.uowasit.edu.iq/index.php/wjcm/article/view/244