TY  - JOUR
AU  - Tzouvaras, Athanossios
TI  - Definability degrees for classes in the alternative set theory
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1988
SP  - 41
EP  - 48
VL  - 29
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1988__29_1_a3/
LA  - en
ID  - CMUC_1988__29_1_a3
ER  -