%0 Journal Article %A Piotr Mankiewicz %A Stanisław J. Szarek %T On the geometry of proportional quotients of ${l^m_1}$ %J Studia Mathematica %D 2003 %P 51-66 %V 155 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm155-1-4/ %R 10.4064/sm155-1-4 %G en %F 10_4064_sm155_1_4