Discrete Applied MathematicsVolume 108, Issues 1–2, 15 February 2001, Pages 1-2PrefaceAuthor links open overlay panelJuraj Hromkovič a, Ondrej Sýkora bShow moreShareCitehttps://doi.org/10.1016/S0166-218X(00)00218-3Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 2001 Elsevier Science B.V. All rights reserved.