%0 Journal Article %A Arnold Neumaier %T On Norm Three Vectors in Integral Euclidean Lattices. I. %J Mathematische Zeitschrift %D 1983 %P 565-574 %V 183 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1983__183_173341/ %F MZ_1983__183_173341