%0 Journal Article
%A Whitfield, J. H. M.
%T Quasi-Differentiable Norms
%J Canadian mathematical bulletin
%D 1974
%P 407-408
%V 17
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1974-075-4/
%R 10.4153/CMB-1974-075-4
%F 10_4153_CMB_1974_075_4