EFTEKHARINASAB, Kaveh. A Frobenius Theorem on Fréchet Manifolds. Serdica Mathematical Journal, Sofia, Bulgaria, v. 52, n. 3, p. 269–294, 2026. DOI: 10.55630/serdica.2026.52.269-294. Disponível em: https://serdica.math.bas.bg/index.php/serdica/article/view/367. Acesso em: 4 oct. 2026.