TY JOUR TI Analysis of the Relationship between Seismicity and Relief of the Baltic Shield using Fuzzy Logic Tools KW morphometric analysis of relief KW fuzzy logic KW seismicity KW Baltic Shield JO Russian Journal of Earth Sciences AU Balashov, G.R. AU Sentsov, A.A. AU Agibalov, A.O. AU Puzich, I.N. PY 2026 IS 26 PB Geophysical Center of the Russian Academy of Sciences