TY  - JOUR
AU  - Zhang, Yue Hui
TI  - Unique covering on radical classes of $\ell$-groups
JO  - Czechoslovak Mathematical Journal
PY  - 1995
SP  - 435
EP  - 441
VL  - 45
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1995.128544/
DO  - 10.21136/CMJ.1995.128544
LA  - en
ID  - 10_21136_CMJ_1995_128544
ER  -