TY JOUR TI Analytical model of small fluctuations of compressible magma with Maxwell rheology in the feeding system of a volcano. Part 1. Density oscillation KW Volcanic low-frequency earthquakes KW volcano feeding system KW magmatic melt rheology KW compressible magmatic body KW analytical model JO Russian Journal of Earth Sciences AU Radionoff, A.A. PY 2023 IS 23 PB Geophysical Center of the Russian Academy of Sciences