TY - JOUR TI - Recenze JO - Applications of Mathematics PY - 1981 SP - 68 EP - 80 VL - 26 IS - 1 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.21136/AM.1981.103896/ DO - 10.21136/AM.1981.103896 LA - cz ID - 10_21136_AM_1981_103896 ER -