TY  - JOUR
AU  - Clough, Robert R.
TI  - The Map SJ → SF Does Not Deloop Mod 2
JO  - Canadian journal of mathematics
PY  - 1975
SP  - 737
EP  - 745
VL  - 27
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-082-2/
DO  - 10.4153/CJM-1975-082-2
ID  - 10_4153_CJM_1975_082_2
ER  -