TY - JOUR AU - Manfrin, Renato TI - Some results of Gevrey and analytic regularity for semilinear weakly hyperbolic equations of Oleinik type JO - Rendiconti del Seminario Matematico della Università di Padova PY - 1995 SP - 165 EP - 213 VL - 94 PB - Seminario Matematico of the University of Padua UR - http://archive.numdam.org/item/RSMUP_1995__94__165_0/ LA - en ID - RSMUP_1995__94__165_0 ER -