%0 Journal Article %A Marek Karaƛ %T Birational Finite Extensions of Mappings from a Smooth Variety %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2009 %P 117-120 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba57-2-4/ %R 10.4064/ba57-2-4 %G en %F 10_4064_ba57_2_4