TY - JOUR AU - P. E. Levin TI - Classes of uniqueness and non-uniqueness of the solution of the Cauchy problem for equations with a~Bessel operator JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1977 SP - 60 EP - 68 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1977_4_a7/ LA - ru ID - IVM_1977_4_a7 ER -