N. RAJESH; M. VANISHREE. Double fuzzy contra-continuous multifunctions. Malaya Journal of Matematik, India, v. 7, n. 04, p. 862–866, 2019. DOI: 10.26637/MJM0704/0039. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1291. Acesso em: 16 jul. 2024.