%0 Journal Article %A V. K. Gavrilov %T Line segment, to divide it or to construct it from parts Gavrilov %J Matematičeskoe obrazovanie %D 2018 %P 2-7 %V 86 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2018_86_2_a0/ %G ru %F MO_2018_86_2_a0