TY - JOUR AU - I. S. Kats TI - Theorems of the connection between the behavior of $R$-functions and the behavior of their spectral functions JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1981 SP - 15 EP - 20 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1981_11_a2/ LA - ru ID - IVM_1981_11_a2 ER -