TY  - JOUR
AU  - Yu. L. Ershov
TI  - Undecidability of the theories of symmetric and simple finite groups
JO  - Doklady Akademii Nauk
PY  - 1964
SP  - 777
EP  - 779
VL  - 158
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1964_158_4_a5/
LA  - ru
ID  - DAN_1964_158_4_a5
ER  -