%0 Journal Article %A Martišovitš, Ilja %T Existence of positive solutions to vector boundary value problems. II %J Mathematica slovaca %D 1999 %P 531-562 %V 49 %N 5 %U http://geodesic.mathdoc.fr/item/MASLO_1999_49_5_a2/ %G en %F MASLO_1999_49_5_a2