%0 Journal Article %A Reif, Jiří %T (P)-sets, quasipolyhedra and stability %J Commentationes Mathematicae Universitatis Carolinae %D 1979 %P 757-763 %V 20 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1979__20_4_a10/ %G en %F CMUC_1979__20_4_a10