TY  - JOUR
AU  - A. P. Beltiukov
TI  - A maximal sequence of classes transformable by primitive recursion in a given class
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1977
SP  - 3
EP  - 18
VL  - 68
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1977_68_a0/
LA  - ru
ID  - ZNSL_1977_68_a0
ER  -