TY - JOUR TI - News and Notices JO - Czechoslovak Mathematical Journal PY - 1965 SP - 161 EP - 168 VL - 15 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1965.100658/ DO - 10.21136/CMJ.1965.100658 LA - en ID - 10_21136_CMJ_1965_100658 ER -