TY - JOUR AU - Rzepecki, Bogdan TI - A note on hyperbolic partial differential equations. II. JO - Mathematica slovaca PY - 1981 SP - 355 EP - 364 VL - 31 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1981__31_4_a3/ LA - en ID - MASLO_1981__31_4_a3 ER -