TY - JOUR AU - Villarreal, F. TI - Colombeau's theory and shock wave solutions for systems of PDEs JO - Electronic journal of differential equations PY - 2000 VL - 2000 UR - http://geodesic.mathdoc.fr/item/EJDE_2000__2000__a46/ LA - en ID - EJDE_2000__2000__a46 ER -