TY - JOUR TI - Recense JO - Applications of Mathematics PY - 1970 SP - 149 EP - 154 VL - 15 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1970.103279/ DO - 10.21136/AM.1970.103279 LA - cs ID - 10_21136_AM_1970_103279 ER -