TY - JOUR TI - Recense JO - Applications of Mathematics PY - 1968 SP - 508 EP - 510 VL - 13 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1968.103199/ DO - 10.21136/AM.1968.103199 LA - cz ID - 10_21136_AM_1968_103199 ER -