%0 Journal Article %A V. Ploskyi %T Functions of Graphics as a Methodological Basis of Graphics Science %J Journal for geometry and graphics %D 2019 %P 139-145 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2019_23_1_JGG_2019_23_1_a11/ %F JGG_2019_23_1_JGG_2019_23_1_a11