TY  - JOUR
AU  - P. de de Harpe
TI  - Simplicity of the projective unitary groups defined by simple factors.
JO  - Commentarii mathematici Helvetici
PY  - 1979
SP  - 334
EP  - 346
VL  - 54
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1979__54_139788/
ID  - CMH_1979__54_139788
ER  -