%0 Journal Article %A Zajíček, Luděk %T Singular points of order $k$ of Clarke regular and arbitrary functions %J Commentationes Mathematicae Universitatis Carolinae %D 2012 %P 51-63 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2012__53_1_a3/ %G en %F CMUC_2012__53_1_a3