TY - JOUR AU - S. B. Norkin TI - On a~boundary problem of Sturm-Liouville type for a~second-order differential equation with a~retarded argument JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1958 SP - 203 EP - 214 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1958_6_a19/ LA - ru ID - IVM_1958_6_a19 ER -