TY - JOUR TI - Recenze JO - Applications of Mathematics PY - 1989 SP - 420 EP - 424 VL - 34 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.21136/AM.1989.104370/ DO - 10.21136/AM.1989.104370 LA - cs ID - 10_21136_AM_1989_104370 ER -