TY  - JOUR
AU  - Herstein, I. N.
TI  - Semi-Homomorphisms of Groups
JO  - Canadian journal of mathematics
PY  - 1968
SP  - 384
EP  - 388
VL  - 20
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-034-7/
DO  - 10.4153/CJM-1968-034-7
ID  - 10_4153_CJM_1968_034_7
ER  -