TY  - JOUR
AU  - Toshizumi Fukui
AU  - Masaru Hasegawa
TI  - Fronts of Whitney umbrella – a differential geometric approach via blowing up
JO  - Journal of Singularities
PY  - 2012
SP  - 35
EP  - 67
VL  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.4c/
DO  - 10.5427/jsing.2012.4c
ID  - 10_5427_jsing_2012_4c
ER  -