%0 Journal Article
%A Toshizumi Fukui
%A Masaru Hasegawa
%T Fronts of Whitney umbrella – a differential geometric approach via blowing up
%J Journal of Singularities
%D 2012
%P 35-67
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.4c/
%R 10.5427/jsing.2012.4c
%F 10_5427_jsing_2012_4c