00620naa#a2200181#i#450# EN\\bibl\9470 20260324003656.2 2308-8877 20151105b2015####ek#y0engy0150####ca RUS RU Transformations of the plane, shape-shifting figures, and their application to problems of Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 3 с. Journal article local Suponeva A. Pastarnak K. zh-szf.ru