BOGOLYUBOV, N. N.; PRYKARPATSKY, A. K. Generalized de Rham-Hodge complexes, the related characteristic Chern classes, and some applications to integrable multidimensional differential systems on Riemannian manifolds. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 59, n. 3, p. 327–344, 2007. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3310. Acesso em: 5 dec. 2025.