TY - JOUR TI - Recenze JO - Applications of Mathematics PY - 1986 SP - 500 EP - 504 VL - 31 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1986.104227/ DO - 10.21136/AM.1986.104227 LA - cs ID - 10_21136_AM_1986_104227 ER -