M. ARUNKUMAR; E. SATHYA; S. RAMAMOORTHI; P. AGILAN. Ulam-Hyers stability of Euler-Lagrange additive functional equation in intuitionistic fuzzy Banach spaces: Direct and fixed point methods. Malaya Journal of Matematik, India, v. 6, n. 01, p. 276–285, 2018. DOI: 10.26637/MJM0601/0031. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/805. Acesso em: 16 jul. 2024.