TY - JOUR AU - Yu. A. Tikhonov TI - On the spectrum localization of an operator-function arising at studying oscillations of a viscoelastic pipeline with Kelvin--Voigt friction JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2022 SP - 23 EP - 34 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2022_2_a2/ LA - ru ID - VMUMM_2022_2_a2 ER -