COLOMBINI, F.; DEL SANTO, D.; KINOSHITA, T. Gevrey-well-posedness for weakly hyperbolic operators with Hölder-continuous coefficients. MATHEMATICA SCANDINAVICA, [S. l.], v. 94, n. 2, p. 267–294, 2004. DOI: 10.7146/math.scand.a-14443. Disponível em: https://www.mscand.dk/article/view/14443. Acesso em: 30 apr. 2024.