TY  - JOUR
AU  - W. Marek
AU  - Paweł Zbierski
TI  - On the number of models of the Kelley-Morse theory of classes
JO  - Fundamenta Mathematicae
PY  - 1980
SP  - 169
EP  - 173
VL  - 109
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-109-3-169-173/
DO  - 10.4064/fm-109-3-169-173
LA  - en
ID  - 10_4064_fm_109_3_169_173
ER  -