%0 Journal Article %A Zajíček, Luděk %T Fréchet differentiability, strict differentiability and subdifferentiability %J Czechoslovak Mathematical Journal %D 1991 %P 471-489 %V 41 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1991.102482/ %R 10.21136/CMJ.1991.102482 %G en %F 10_21136_CMJ_1991_102482