TY - JOUR TI - Summaries of articles published in this issue JO - Czechoslovak Mathematical Journal PY - 1972 VL - 22 IS - 3 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1972.101105/ DO - 10.21136/CMJ.1972.101105 LA - en ID - 10_21136_CMJ_1972_101105 ER -