%0 Journal Article %A Chris Lennard %T A new convexity property that implies a fixed point property for $L_{1}$ %J Studia Mathematica %D 1991 %P 95-108 %V 100 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-100-2-95-108/ %R 10.4064/sm-100-2-95-108 %G en %F 10_4064_sm_100_2_95_108