%0 Journal Article %A Leszek Pacholski %T On countably universal Boolean algebras compact classes of models %J Fundamenta Mathematicae %D 1973 %P 43-60 %V 78 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-78-1-43-60/ %R 10.4064/fm-78-1-43-60 %G en %F 10_4064_fm_78_1_43_60