TY - JOUR TI - News and Notices JO - Czechoslovak Mathematical Journal PY - 1951 SP - 55 EP - 56 VL - 1 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1951.100014/ DO - 10.21136/CMJ.1951.100014 LA - en ID - 10_21136_CMJ_1951_100014 ER -