00607naa#a2200169#i#450# EN\\bibl\4297 20250501045354.4 2308-8877 20141201b2014####ek#y0engy0150####ca RUS RU The apparature - technological design process of receiving oxygen enrichment breathing mix development Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 3 с. Journal article local Chernov G. anni.editorum.ru