TY  - JOUR
AU  - A. V. Proskurin
TI  - Positive rudimentarity of the graphs of the Ackermann's and Grzegorczyk's functions
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1979
SP  - 186
EP  - 191
VL  - 88
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1979_88_a13/
LA  - ru
ID  - ZNSL_1979_88_a13
ER  -