%0 Journal Article %A V. V. Shokurov %T The existence of a~straight line on Fano 3-folds %J Izvestiya. Mathematics %D 1980 %P 173-209 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1980_15_1_a7/ %G en %F IM2_1980_15_1_a7