%0 Journal Article %A L. Lewin %T The order-independence of the polylogarithmic ladder structure - implications for a new category of functional equations. %J Aequationes mathematicae %D 1986 %P 1-20 %V 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1986__30_137109/ %F AM2_1986__30_137109