%0 Journal Article %A S. Rolewicz %T On drop property %J Studia Mathematica %D 1987 %P 17-35 %V 85 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-85-1-17-35/ %R 10.4064/sm-85-1-17-35 %G en %F 10_4064_sm_85_1_17_35