TY JOUR TI Assessment of the fire-extinguishing effect of aqueous copper sulfate solutions for the suppression of landscape fires KW peat fires KW flameless combustion KW fire-extinguishing agents KW aqueous solutions KW copper sulfate KW fire-extinguishing agent consumption JO Siberian Fire and Rescue Bulletin AU Protsenko, T.V. AU Sorokin, I.A. AU Ivakhnyuk, G.K. PY 2026 IS 0 PB FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia