TY  - JOUR
AU  - Ashraf, Mohammad
TI  - On left $(\theta,\varphi)$-derivations of prime rings
JO  - Archivum mathematicum
PY  - 2005
SP  - 157
EP  - 166
VL  - 41
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_2005__41_2_a3/
LA  - en
ID  - ARM_2005__41_2_a3
ER  -