TY  - JOUR
AU  - S. S. Marchenkov
TI  - Existence of superposition bases in countable primitively recursively closed classes
JO  - Matematičeskie zametki
PY  - 1986
SP  - 268
EP  - 276
VL  - 39
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1986_39_2_a11/
LA  - ru
ID  - MZM_1986_39_2_a11
ER  -