%0 Journal Article %A V. V. Sekackii %T On the question of the tensorial characterization of algebraic surfaces %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1975 %P 76-79 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1975_7_a8/ %G ru %F IVM_1975_7_a8