TY - JOUR TI - News and Notices JO - Applications of Mathematics PY - 1960 SP - 476 EP - 490 VL - 5 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1960.102733/ DO - 10.21136/AM.1960.102733 LA - cs ID - 10_21136_AM_1960_102733 ER -