00580naa#a2200169#i#450# EN\\bibl\4220 20250413133627.7 2308-8877 20141113b2014####ek#y0engy0150####ca RUS RU The use computer algorithms for solving systems of quadratic equations 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 Shipovskaya A. anni.editorum.ru