%0 Journal Article %A B. L. Druzhinin %T How to solve a third degree equation %J Matematičeskoe obrazovanie %D 2020 %P 61-66 %V 96 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2020_96_4_a8/ %G ru %F MO_2020_96_4_a8