@article{GDZPPN00227339X,
title = {The Minimum Value of Quadratic Forms, and the Closest Packing of Spheres},
journal = {Mathematische Annalen},
volume = {101},
year = {1929},
pages = {605-607},
zbl = {55.0721.01},
url = {http://dml.mathdoc.fr/item/GDZPPN00227339X}
}
Blichfeldt, H.F. The Minimum Value of Quadratic Forms, and the Closest Packing of Spheres. Mathematische Annalen, Tome 101 (1929) pp. 605-607. http://gdmltest.u-ga.fr/item/GDZPPN00227339X/