%0 Journal Article %A Šidák, Zbyněk %T Announcement %J Applications of Mathematics %D 1991 %V 36 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1991.104438/ %R 10.21136/AM.1991.104438 %G en %F 10_21136_AM_1991_104438