P. Gruber:
"Application of an idea of Voronoi to lattice packing";
Annali di Matematica Pura ed Applicata, 4 (2014), 193; S. 939 - 959.
http://dx.doi.org/10.1007/s10231-012-0308-4Elektronische Version der Publikation:
http://link.springer.com/article/10.1007/s10231-012-0308-4/fulltext.html