@article{GDZPPN002375389,
title = {The minimum values of positive quadratic forms in sex, seven and eight variables},
journal = {Mathematische Zeitschrift},
volume = {39},
year = {1935},
pages = {1-15},
zbl = {0009.24403},
url = {http://dml.mathdoc.fr/item/GDZPPN002375389}
}
Blichfeldt, H.F. The minimum values of positive quadratic forms in sex, seven and eight variables. Mathematische Zeitschrift, Tome 39 (1935) pp. 1-15. http://gdmltest.u-ga.fr/item/GDZPPN002375389/