TY  - JOUR
AU  - Zygmunt Ratajczyk
TI  - A characterization of expandability of models for ZF to models for KM
JO  - Fundamenta Mathematicae
PY  - 1981
SP  - 9
EP  - 19
VL  - 113
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-113-1-9-19/
DO  - 10.4064/fm-113-1-9-19
LA  - en
ID  - 10_4064_fm_113_1_9_19
ER  -