Eftekharinasab К. Sard’s theorem for mappings between Fréchet manifolds. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 62, n. 12, p. 1634–1641, 2010. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2988. Acesso em: 5 dec. 2025.