%0 Journal Article %T Recenze %J Applications of Mathematics %D 1987 %P 491-496 %V 32 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1987.104279/ %R 10.21136/AM.1987.104279 %G cz %F 10_21136_AM_1987_104279