%0 Journal Article %A W. Banaszczyk %T On the lattice packing--covering ratio of finite-dimensional normed spaces %J Colloquium Mathematicum %D 1990 %P 31-33 %V 59 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-59-1-31-33/ %R 10.4064/cm-59-1-31-33 %G en %F 10_4064_cm_59_1_31_33