Chiranjib Choudhury, and Shyamal Debnath. “Further Results on I and I*−Convergence of Sequences in Gradual Normed Linear Spaces”. Jordan Journal of Mathematics and Statistics 15, no. 4A (May 18, 2025): 967–982. Accessed August 18, 2025. https://jjms.yu.edu.jo/index.php/jjms/article/view/709.