TY - JOUR TI - News and Notices JO - Czechoslovak Mathematical Journal PY - 1969 SP - 190 EP - 191 VL - 19 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100886/ DO - 10.21136/CMJ.1969.100886 LA - en ID - 10_21136_CMJ_1969_100886 ER -