%0 Journal Article %A V. T. Fomenko %T Two-dimensional surfaces with flat normal connections in spaces of constant curvature carrying geodesics of constant curvature %J Matematičeskie zametki %D 2000 %P 579-586 %V 68 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2000_68_4_a9/ %G ru %F MZM_2000_68_4_a9