%0 Journal Article %T Recenze %J Applications of Mathematics %D 1989 %P 261-264 %V 34 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1989.104353/ %R 10.21136/AM.1989.104353 %G cz %F 10_21136_AM_1989_104353