TY  - JOUR
AU  - A. V. Zavarnitsin
AU  - V. D. Mazurov
TI  - Element orders in coverings of symmetric and alternating
JO  - Algebra i logika
PY  - 1999
SP  - 296
EP  - 315
VL  - 38
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1999_38_3_a2/
LA  - ru
ID  - AL_1999_38_3_a2
ER  -