%0 Journal Article %A G. Colombo %A P. R. Wolenski %T Variational Analysis for a Class of Minimal Time Functions in Hilbert Spaces %J Journal of convex analysis %D 2004 %P 335-361 %V 11 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2004_11_2_JCA_2004_11_2_a4/ %F JCA_2004_11_2_JCA_2004_11_2_a4