SUNIL K. SHARMA; KULDIP RAJ. Difference entire sequence spaces of fuzzy numbers. Malaya Journal of Matematik, India, v. 1, n. 02, p. 11–17, 2013. DOI: 10.26637/mjm102/002. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/345. Acesso em: 16 jul. 2024.