%0 Journal Article %A P. Erdös %A E. Specker %T On a theorem in the theory of relations and a solution of a problem of Knaster %J Colloquium Mathematicum %D 1961 %P 19-21 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-8-1-19-21/ %R 10.4064/cm-8-1-19-21 %G en %F 10_4064_cm_8_1_19_21