TY JOUR TI Thermogravimetric analysis of Siberian cedar wood (Pinus sibirica Du Tour) at different stages of dieback, growing in North-Eastern Tuva KW Siberian pine KW thermal analysis KW shrinkage KW climate trend KW combined stress JO Forestry Engineering Journal AU Zhila, S.V. AU Kulakov, S.S. AU Demidko, D.A. AU Danilyuk, Y.V. AU Aniskina, A.A. PY 2026 IS 16 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov