%0 Journal Article %A J. Słomiński %T On the extending of models (III) %J Fundamenta Mathematicae %D 1956 %P 69-76 %V 43 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-43-1-69-76/ %R 10.4064/fm-43-1-69-76 %G en %F 10_4064_fm_43_1_69_76