Farhadian R, Jakimczuk R. A further generalization of $\lim_{n\to\infty}\sqrt[n]{n!}/n = 1/e$. AMSil [Internet]. 18Apr.2022 [cited 11May2024];36(2):167-75. Available from: https://www.journals.us.edu.pl/index.php/AMSIL/article/view/13549