TY  - JOUR
AU  - Ulrich Koschorke
TI  - Concordance and Bordism of Line Fields.
JO  - Inventiones mathematicae
PY  - 1974
SP  - 241
EP  - 268
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1974__24_142278/
ID  - IM_1974__24_142278
ER  -