@article{GDZPPN002428059, title = {On Norm Three Vectors in Integral Euclidean Lattices. I.}, journal = {Mathematische Zeitschrift}, volume = {183}, year = {1983}, pages = {565-574}, zbl = {0496.10018}, url = {http://dml.mathdoc.fr/item/GDZPPN002428059} }
Neumaier, Arnold. On Norm Three Vectors in Integral Euclidean Lattices. I.. Mathematische Zeitschrift, Tome 183 (1983) pp. 565-574. http://gdmltest.u-ga.fr/item/GDZPPN002428059/