ZOMOT, N. Linear System in general form for Hyperbolic type. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 11, n. 8, p. 5583–5586, 2015. DOI: 10.24297/jam.v11i8.1212. Disponível em: https://rajpub.com/index.php/jam/article/view/3665. Acesso em: 11 may. 2024.