EDWARDS, D. A. Minimum-Stable Wedges of Semicontinuous Functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 19, p. 15–26, 1966. DOI: 10.7146/math.scand.a-10792. Disponível em: https://tidsskrift.dk/math/article/view/10792. Acesso em: 14 aug. 2026.