%0 Journal Article %A I. P. Kostenko %T The Background, Branches, and ``Berries" of the Reform-1970 %J Matematičeskoe obrazovanie %D 2009 %P 14-23 %V 50 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2009_50_2_a2/ %G ru %F MO_2009_50_2_a2