TY  - JOUR
AU  - S. A. Norgela
TI  - On the approximation of reduction classes of RPC by decidable classes
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1976
SP  - 103
EP  - 108
VL  - 60
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1976_60_a9/
LA  - ru
ID  - ZNSL_1976_60_a9
ER  -