TY - JOUR TI - Recense JO - Applications of Mathematics PY - 1978 SP - 472 EP - 476 VL - 23 IS - 6 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1978.103773/ DO - 10.21136/AM.1978.103773 LA - cz ID - 10_21136_AM_1978_103773 ER -