LABUDA, I. Multi-valued Namioka theorems. MATHEMATICA SCANDINAVICA, [S. l.], v. 58, p. 227–235, 1986. DOI: 10.7146/math.scand.a-12142. Disponível em: https://www.mscand.dk/article/view/12142. Acesso em: 14 apr. 2025.