%0 Journal Article %A Herzog, G. %T On quasimonotone increasing systems of ordinary differential equations. %J Portugaliae mathematica %D 2000 %P 35-43 %V 57 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_2000__57_1_48535/ %G en %F PORMA_2000__57_1_48535