TY  - JOUR
AU  - Johannes Huebschmann
TI  - The first k-invariant, Quillen's space BG+ and the construction of Kann and Thurston.
JO  - Commentarii mathematici Helvetici
PY  - 1980
SP  - 314
EP  - 318
VL  - 55
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1980__55_139828/
ID  - CMH_1980__55_139828
ER  -