%0 Journal Article %A N. Kalton %T Universal spaces and universal bases in metric spaces %J Studia Mathematica %D 1977 %P 161-191 %V 61 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-61-2-161-191/ %R 10.4064/sm-61-2-161-191 %G en %F 10_4064_sm_61_2_161_191