%0 Journal Article %A S. Simons %A T. Leih %T Splitting quasinorms and metric approximation properties %J Studia Mathematica %D 1973 %P 207-238 %V 47 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-47-3-207-238/ %R 10.4064/sm-47-3-207-238 %G en %F 10_4064_sm_47_3_207_238