%0 Journal Article %A P. V. Bibikov %T On the geometry of quadratic second-order Abel ordinary differential equations %J Fundamentalʹnaâ i prikladnaâ matematika %D 2015 %P 21-34 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2015_20_2_a1/ %G ru %F FPM_2015_20_2_a1