TY - JOUR TI - News and Notices JO - Czechoslovak Mathematical Journal PY - 1972 VL - 22 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101119/ DO - 10.21136/CMJ.1972.101119 LA - en ID - 10_21136_CMJ_1972_101119 ER -