%0 Journal Article %A Oryan. M.H. %T On power series and Mahler's U-numbers. %J Mathematica Scandinavica %D 1989 %P 143-151 %V 65 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1989__65_2_167074/ %F MS2_1989__65_2_167074