TY  - JOUR
AU  - Z. K. Litvintseva
TI  - The complexity of individual identity problems in semigroups
JO  - Algebra i logika
PY  - 1970
SP  - 172
EP  - 199
VL  - 9
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1970_9_2_a4/
LA  - ru
ID  - AL_1970_9_2_a4
ER  -