[1] John C. Baez, Aristide Baratin, Laurent Freidel and Derek K. Wise.
Infinite-Dimensional Representations of 2-Groups.
Mem. Amer. Math. Soc.219(2012) Abstract, references, and article information View Article:PDF
[2] Mikhail Khovanov, Aaron D. Lauda, Marco Mackaay and Marko Stošić.
Extended graphical calculus for categorified quantum sl(2).
Mem. Amer. Math. Soc.219(2012) Abstract, references, and article information View Article:PDF
