TY  - JOUR
AU  - Garfinkel, Gerald S.
AU  - Wu, Yel-Chiang
TI  - Cohomology and special extensions of groups
JO  - Czechoslovak Mathematical Journal
PY  - 1979
SP  - 1
EP  - 10
VL  - 29
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101572/
DO  - 10.21136/CMJ.1979.101572
LA  - en
ID  - 10_21136_CMJ_1979_101572
ER  -