SANDEEP GUPTA; MANOJ KUMAR; RITU. Null Cesàro Summable Difference Sequence Space. International Journal of Mathematics And its Applications, [S. l.], v. 12, n. 3, p. 155–164, 2024. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1534. Acesso em: 15 sep. 2025.