%0 Journal Article %A Kalton, N. J. %T Curves with zero derivative in F-spaces %J Glasgow mathematical journal %D 1981 %P 19-29 %V 22 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004432/ %R 10.1017/S0017089500004432 %F 10_1017_S0017089500004432