Discrete MathematicsVolume 279, Issues 1–3, 28 March 2004, Pages 1-2PrefaceAuthor links open overlay panelFrank E. Bennett, Charles J. Colbourn, Ruizhong Wei, Jianxing YinShow moreShareCitehttps://doi.org/10.1016/S0012-365X(03)00258-9Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 2003 Elsevier B.V. All rights reserved.