CORTÉS, Vicente. Odd Riemannian symmetric spaces associated to four-forms. MATHEMATICA SCANDINAVICA, [S. l.], v. 98, n. 2, p. 201–216, 2006. DOI: 10.7146/math.scand.a-14991. Disponível em: https://www.mscand.dk/article/view/14991. Acesso em: 6 dec. 2025.