%0 Journal Article %A S. Heinrich %A P. Mankiewicz %T Applications of ultrapowers to the uniform and Lipschitz classification of Banach spaces %J Studia Mathematica %D 1982 %P 225-251 %V 73 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-73-3-225-251/ %R 10.4064/sm-73-3-225-251 %G en %F 10_4064_sm_73_3_225_251