Bagul, Yogesh J., Sumedh B. Thool, Christophe Chesneau, and Ramkrishna M. Dhaigude. “Refinements of Some Classical Inequalities Involving Sinc and Hyperbolic Sinc Functions”. Annales Mathematicae Silesianae 37, no. 1 (November 23, 2022): 1–15. Accessed February 26, 2026. https://journals.us.edu.pl/index.php/AMSIL/article/view/14911.