%0 Journal Article %A V. V. Konnov %T A~differential-geometrical criterion for quadratic Veronese embeddings %J Izvestiya. Mathematics %D 2000 %P 891-914 %V 64 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2000_64_5_a1/ %G en %F IM2_2000_64_5_a1