%0 Journal Article %A Campos, L.M.B.C. %T On rules of derivation with complex order for analytic and branched functions %J Portugaliae mathematica %D 1985 %P 347-376 %V 43 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1985__43_3_114514/ %G en %F PORMA_1985__43_3_114514