%0 Journal Article %A R. Frankiewicz %A Paweł Zbierski %T On a theorem of Baumgartner and Weese %J Fundamenta Mathematicae %D 1991 %P 167-175 %V 139 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-139-3-167-175/ %R 10.4064/fm-139-3-167-175 %G de %F 10_4064_fm_139_3_167_175