DIMAKIS, A.; KANNING, N.; MÜLLER-HOISSEN, F. Bidifferential Calculus, Matrix SIT and Sine-Gordon Equations. Acta Polytechnica, [S. l.], v. 51, n. 2, 2011. DOI: 10.14311/1352. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1352. Acesso em: 3 may. 2024.