TY  - JOUR
AU  - Goo Ishikawa
AU  - Yoshinori Machida,
AU  - Masatomo Takahashi
TI  - Asymmetry in singularities of tangent surfaces in contact-cone Legendre-null duality
JO  - Journal of Singularities
PY  - 2011
SP  - 126
EP  - 143
VL  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.5427/jsing.2011.3h/
DO  - 10.5427/jsing.2011.3h
ID  - 10_5427_jsing_2011_3h
ER  -