TY - JOUR AU - V. I. Korzyuk TI - A conjugacy problem for equations of hyperbolic and parabolic types JO - Differencialʹnye uravneniâ PY - 1968 SP - 1854 EP - 1866 VL - 4 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_10_a9/ LA - ru ID - DE_1968_4_10_a9 ER -