European Journal of CombinatoricsVolume 32, Issue 7, October 2011, Pages 951-953PrefaceAuthor links open overlay panelLászló Lovász, Jaroslav Nešetřil, Patrice Ossona de Mendez, Alexander SchrijverShow moreShareCitehttps://doi.org/10.1016/j.ejc.2011.03.018Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 2011 Elsevier Ltd. All rights reserved.