@article{10_4064_sm_47_3_207_238, author = {S. Simons and T. Leih}, title = {Splitting quasinorms and metric approximation properties}, journal = {Studia Mathematica}, pages = {207--238}, publisher = {mathdoc}, volume = {47}, number = {3}, year = {1973}, doi = {10.4064/sm-47-3-207-238}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-47-3-207-238/} }