1. The Rasmussen invariant of a homogeneous knot;Abe;Proc. Am. Math. Soc.,2011
2. Khovanov's homology for tangles and cobordisms;Bar-Natan;Algebraic Geom. Topol.,2005
3. The Karoubi envelope and Lee's degeneration of Khovanov homology;Bar-Natan;Algebraic Geom. Topol.,2006