%0 Journal Article %A K. Le/sniak %T On the Lifshits Constant for Hyperspaces %J Bulletin of the Polish Academy of Sciences. Mathematics %D 2007 %P 155-160 %V 55 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ba55-2-6/ %R 10.4064/ba55-2-6 %G en %F 10_4064_ba55_2_6