TY  - JOUR
AU  - A. D. Korshunov
TI  - The power and structure of closed Post classes (families of subsets of a finite set)
JO  - Matematičeskie trudy
PY  - 1988
SP  - 159
EP  - 204
VL  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MT_1988_10_a7/
LA  - ru
ID  - MT_1988_10_a7
ER  -