%0 Journal Article %A Schwarz, Štefan %T Some estimates in the theory of non-negative matrices %J Czechoslovak Mathematical Journal %D 1967 %P 399-407 %V 17 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100785/ %R 10.21136/CMJ.1967.100785 %G en %F 10_21136_CMJ_1967_100785