%0 Journal Article %A Wojciech KryƄski %T Remarks on Convexity in Dimension $(2,2)$ %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2008 %P 207-211 %V 56 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba56-3-3/ %R 10.4064/ba56-3-3 %G en %F 10_4064_ba56_3_3