TY - JOUR AU - O. M. Dzhokhadze TI - A~Darboux-type problem in the trihedral angle for a~third-order equation of hyperbolic type JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1999 SP - 22 EP - 30 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1999_3_a2/ LA - ru ID - IVM_1999_3_a2 ER -