TY  - JOUR
AU  - T. McLaughlin
TI  - Degrees of unsolvability within a regressive isol
JO  - Fundamenta Mathematicae
PY  - 1974
SP  - 29
EP  - 40
VL  - 86
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-86-1-29-40/
DO  - 10.4064/fm-86-1-29-40
LA  - en
ID  - 10_4064_fm_86_1_29_40
ER  -