-barrier for Irredundance: Two lines of attack.
Daniel Binkele-RaibleLjiljana BrankovicMarek CyganHenning FernauJoachim KneisDieter KratschAlexander LangerMathieu LiedloffMarcin PilipczukPeter RossmanithJakub Onufry WojtaszczykPublished in: J. Discrete Algorithms (2011)