TY - JOUR TI - Journal for the Cultivation of Mathematics. Abstracts JO - Czechoslovak Mathematical Journal PY - 1959 SP - 315 EP - 318 VL - 09 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1959.100357/ DO - 10.21136/CMJ.1959.100357 LA - en ID - 10_21136_CMJ_1959_100357 ER -