TY  - JOUR
AU  - Yu. V. Matiyasevich
TI  - Simple examples of unsolvable canonical calculi
JO  - Informatics and Automation
PY  - 1967
SP  - 50
EP  - 88
VL  - 93
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1967_93_a3/
LA  - ru
ID  - TRSPY_1967_93_a3
ER  -