%0 Journal Article %A J. Baumgartner %A A. Hajnal %T A proof (involving Martin's axiom) of a partition relation %J Fundamenta Mathematicae %D 1973 %P 193-203 %V 78 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-78-3-193-203/ %R 10.4064/fm-78-3-193-203 %G en %F 10_4064_fm_78_3_193_203