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@article{MZ_1935__39_168534, author = {H.F. Blichfeldt}, title = {The minimum values of positive quadratic forms in sex, seven and eight variables}, journal = {Mathematische Zeitschrift}, pages = {1--15}, publisher = {mathdoc}, volume = {39}, year = {1935}, zbl = {0009.24403}, url = {http://geodesic.mathdoc.fr/item/MZ_1935__39_168534/} }
H.F. Blichfeldt. The minimum values of positive quadratic forms in sex, seven and eight variables. Mathematische Zeitschrift, Tome 39 (1935), pp. 1-15. http://geodesic.mathdoc.fr/item/MZ_1935__39_168534/