TY - JOUR AU - F. G. Mukhlisov TI - The existence and uniqueness of the solution of certain partial differential equations with the Bessel differential operator.~I JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1978 SP - 66 EP - 74 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1978_1_a7/ LA - ru ID - IVM_1978_1_a7 ER -