TY  - JOUR
AU  - John Burgess
TI  - Classical hierarchies from a modern standpoint. Part II. R-sets
JO  - Fundamenta Mathematicae
PY  - 1983
SP  - 97
EP  - 105
VL  - 115
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-115-2-97-105/
DO  - 10.4064/fm-115-2-97-105
LA  - en
ID  - 10_4064_fm_115_2_97_105
ER  -