Electronic Notes in Theoretical Computer ScienceVolume 238, Issue 3, 29 June 2009, Pages 1-3PrefaceAuthor links open overlay panelGrigore RoşuShow moreShareCitehttps://doi.org/10.1016/j.entcs.2009.05.009Get rights and contentUnder a Creative Commons licenseopen accessPrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 2009 Published by Elsevier B.V.