TY  - JOUR
AU  - John Smillie
TI  - An Obstruction to the Existence of Affine Structures.
JO  - Inventiones mathematicae
PY  - 1981
SP  - 411
EP  - 416
VL  - 64
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1981__64_142828/
ID  - IM_1981__64_142828
ER  -