%0 Journal Article %A Fred J. Sansone %T The Backward and Forward Summation of Infinite Series of Isols. %J Mathematica Scandinavica %D 1969 %P 217-220 %V 24 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1969__24_166092/ %F MS2_1969__24_166092