%0 Journal Article %A Gideon Schechtman %T Matrix subspaces of $L_1$ %J Studia Mathematica %D 2013 %P 281-285 %V 215 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4064/sm215-3-5/ %R 10.4064/sm215-3-5 %G en %F 10_4064_sm215_3_5