There are several papers, listed here in reverse chronological order.

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• N. J. A. Sloane and Vinay A. Vaishampayan, A Note on Zador's Formula, Trans. Inform. Theory 48 (2002), 3138-3140 [Abstract, pdf, ps].

• N. J. A. Sloane and B. Beferull-Lozano, Quantizing Using Lattice Intersections, Discr. Comput. Geom. 25 (2003), 868-881 [Abstract, pdf, ps].

• Suhas N. Duggavi, N. J. A. Sloane and Vinay A. Vaishampayan, Asymmetric Multiple Description Lattice Vector Quantizers", IEEE Trans. Inform. Theory, 48 (2002), 174-191. [Abstract, pdf, ps].
• Suhas N. Duggavi, N. J. A. Sloane and Vinay A. Vaishampayan, Design of Asymmetric Multiple Description Lattice Vector Quantizers", paper for DCC-2000 [Abstract, pdf, ps].
• Vinay A. Vaishampayan, N. J. A. Sloane and Sergio D. Servetto, Multiple-Description Vector Quantization with Lattice Codebooks: Design and Analysis, IEEE Trans. Inform. Theory, 47 (2001), 1718-1734 [Abstract, pdf, ps].
• Vinay A. Vaishampayan and N. J. A. Sloane, Asymptotic Performance of Multiple Description Lattice Quantizers", paper for ISIT-2000 [Abstract, pdf, ps].
• Sergio D. Servetto, Vinay A. Vaishampayan and N. J. A. Sloane, Multiple Description Lattice Vector Quantization, paper for DCC '99 [ps, further details].