TY - JOUR AU - P. Erdös AU - E. Specker TI - On a theorem in the theory of relations and a solution of a problem of Knaster JO - Colloquium Mathematicum PY - 1961 SP - 19 EP - 21 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-8-1-19-21/ DO - 10.4064/cm-8-1-19-21 LA - en ID - 10_4064_cm_8_1_19_21 ER -