%0 Journal Article %A Pták, Vlastimil %T A combinatorial theorem on systems of inequalities and its application to analysis %J Czechoslovak Mathematical Journal %D 1959 %P 629-630 %V 09 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1959.100386/ %R 10.21136/CMJ.1959.100386 %G en %F 10_21136_CMJ_1959_100386