%0 Journal Article %A V. Khatskevich %T Generalized fractional linear transformations: convexity and compactness of the image and the pre-image; applications. %J Studia Mathematica %D 1999 %P 169-175 %V 137 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-137-2-169-175/ %R 10.4064/sm-137-2-169-175 %G en %F 10_4064_sm_137_2_169_175