Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleVarious results on the toughness of graphs.AuthorsBroersma, Hajo; Engbers, Erik; Trommel, HuibPublicationNetworks, 1999, Vol 33, Issue 3, p233ISSN0028-3045Publication typeArticleDOI10.1002/(SICI)1097-0037(199905)33:3<233::AID-NET9>3.0.CO;2-A