Sphere packings, lattices, and groups / J.H. Conway, N.J.A. Sloane ; with additional contributions by E. Bannai ... [et al.]. Conway, John Horton. Sloane, N. J. A. (Neil James Alexander), 1939- Combinatorial packing and covering. Sphere. Lattice theory. Finite groups. QA166.7 .C66 1992 511.6 20 COS Includes index. Includes bibliographical references (p. [572]-656) and index. New York : Springer-Verlag, c1992. c1992. 1992 Text xliii, 679 p. : eng Grundlehren der mathematischen Wissenschaften ; 290 Grundlehren der mathematischen Wissenschaften ; 290.