TY  - JOUR
AU  - Haji-Badali, Ali
AU  - Zaeim, Amirhesam
TI  - Semi-symmetric four dimensional neutral Lie groups
JO  - Czechoslovak Mathematical Journal
PY  - 2020
SP  - 393
EP  - 410
VL  - 70
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2019.0342-18/
DO  - 10.21136/CMJ.2019.0342-18
LA  - en
ID  - 10_21136_CMJ_2019_0342_18
ER  -