%0 Journal Article %A R. Lidl %A Harald Niederreiter %T On orthogonal systems and permutation polynomials in several variables %J Acta Arithmetica %D 1972 %P 257-265 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-22-3-257-265/ %R 10.4064/aa-22-3-257-265 %G en %F 10_4064_aa_22_3_257_265