TY - JOUR AU - V. Bryuns TI - The eigen- and associated functions of a~one-dimensional linear differential operator of order~$n$ JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1972 SP - 7 EP - 12 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1972_10_a1/ LA - ru ID - IVM_1972_10_a1 ER -