%0 Journal Article %A E. G. Smoljanova %T Transformation of the branches of a hyperbola into its small fragment %J Matematičeskoe obrazovanie %D 2019 %P 58-62 %V 92 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2019_92_4_a5/ %G ru %F MO_2019_92_4_a5