%0 Journal Article %A N. D. Podufalov %T Regular sets and collineations of projective planes %J Algebra i logika %D 1991 %P 90-101 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1991_30_1_a6/ %G ru %F AL_1991_30_1_a6