TY - JOUR TI - News and Notices JO - Applications of Mathematics PY - 1964 VL - 09 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1964.102916/ DO - 10.21136/AM.1964.102916 LA - cz ID - 10_21136_AM_1964_102916 ER -