TY - JOUR TI - Recense JO - Applications of Mathematics PY - 1969 SP - 337 EP - 340 VL - 14 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1969.103240/ DO - 10.21136/AM.1969.103240 LA - cs ID - 10_21136_AM_1969_103240 ER -