1. Witten, E.: Analytic Continuation Of Chern-Simons Theory. http://xxx.lanl.gov/abs/1001.2933 (arXiv:1001.2933)
2. Dimofte, T., Gukov, S., Lenells, J., Zagier, D.: Exact results for perturbative Chern-Simons theory with complex gauge group. Commun. Num. Theor. Phys. 3, 363–443 (2009). http://xxx.lanl.gov/abs/0903.2472 (arXiv:0903.2472)
3. Nekrasov, N.A.: Seiberg-Witten prepotential from instanton counting. Adv. Theor. Math. Phys. 7, 831–864 (2004). http://xxx.lanl.gov/abs/hep-th/0206161v1 (hep-th/0206 161v1)
4. Alday, L.F., Gaiotto, D., Tachikawa, Y.: Liouville correlation functions from four-dimensional gauge theories. Lett. Math. Phys. 91, 167–197 (2010). http://xxx.lanl.gov/abs/0906.3219 (arXiv:0906.3219)
5. Blau, M., Thompson, G.: Aspects of N T ≥ 2 topological gauge theories and D-branes. Nucl. Phys. B 492, 545–590 (1997). http://xxx.lanl.gov/abs/hep-th/9612143 (hep-th/9612143)