The Unimodular Lattices of Dimension up to 23 and the Minkowski-Siegel Mass Constants

J. H. Conway and N. J. A. Sloane, European J. Combinatorics, 3 (1982), pp. 219-231.

Pages 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231.