TY  - JOUR
AU  - B. Zeković
TI  - Universal covering rings and their radicals
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1989
SP  - 14
EP  - 17
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1989_6_a2/
LA  - ru
ID  - VMUMM_1989_6_a2
ER  -