TY - JOUR TI - News and Notices JO - Czechoslovak Mathematical Journal PY - 1967 SP - 312 VL - 17 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100777/ DO - 10.21136/CMJ.1967.100777 LA - en ID - 10_21136_CMJ_1967_100777 ER -