%0 Journal Article %A Krejzlík, Jaroslav %T Deformations of plane pseudocongruences with projective connection %J Czechoslovak Mathematical Journal %D 1971 %P 213-233 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101017/ %R 10.21136/CMJ.1971.101017 %G en %F 10_21136_CMJ_1971_101017