00604naa#a2200169#i#450# EN\\bibl\3205 20250310091728.1 2308-8877 20140617b2014####ek#y0engy0150####ca RUS RU The transparent proof of the theorem of a.yu.levin about materiality of roots of analytical function Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 5 с. Journal article local Anosov V. anni.editorum.ru