%0 Journal Article %A J. Kijowski %A W. Szczyrba %T On differentiability in an important class of locally convex spaces %J Studia Mathematica %D 1968 %P 247-257 %V 30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-30-2-247-257/ %R 10.4064/sm-30-2-247-257 %G en %F 10_4064_sm_30_2_247_257