TY - JOUR TI - Recense JO - Applications of Mathematics PY - 1969 SP - 428 VL - 14 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1969.103250/ DO - 10.21136/AM.1969.103250 LA - cs ID - 10_21136_AM_1969_103250 ER -