BRENNER, P. The Cauchy Problem for Symmetric Hyperbolic Systems in Lp. MATHEMATICA SCANDINAVICA, [S. l.], v. 19, p. 27–37, 1966. DOI: 10.7146/math.scand.a-10793. Disponível em: https://www.mscand.dk/article/view/10793. Acesso em: 6 may. 2024.