TY - JOUR TI - News and Notices JO - Applications of Mathematics PY - 1976 SP - 316 VL - 21 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1976.103652/ DO - 10.21136/AM.1976.103652 LA - cs ID - 10_21136_AM_1976_103652 ER -