%0 Journal Article %A Lê Hai Khôi %T A note on matrix transformations of holomorphic Dirichlet series. %J Portugaliae mathematica %D 1999 %P 195-203 %V 56 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1999__56_2_48513/ %G en %F PORMA_1999__56_2_48513