Biswas, T. “Advancement on the Study of Growth Analysis of Differential Polynomial and Differential Monomial in the Light of Slowly Increasing Functions”. Carpathian Mathematical Publications 10, no. 1 (July 3, 2018): 31–57. Accessed May 4, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/1468.