%0 Journal Article %A Carlitz, Leonard %T Reduction formulas for certain multiple exponential sums %J Czechoslovak Mathematical Journal %D 1970 %P 616-627 %V 20 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100987/ %R 10.21136/CMJ.1970.100987 %G en %F 10_21136_CMJ_1970_100987