TY  - JOUR
AU  - S. Feferman
AU  - C. Spector
TI  - Incompleteness along paths in progressions of theories
JO  - Matematika
PY  - 1971
SP  - 159
EP  - 166
VL  - 15
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1971_15_6_a6/
LA  - ru
ID  - MAT_1971_15_6_a6
ER  -