TY - JOUR AU - N. A. Izobov AU - A. S. Platonov TI - Construction of a linear Pfaff equation with arbitrarily given characteristics and lower characteristic sets JO - Differencialʹnye uravneniâ PY - 1998 SP - 1596 EP - 1603 VL - 34 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1998_34_12_a1/ LA - ru ID - DE_1998_34_12_a1 ER -