Thompson, D., Itsios, G., Núñez, C., Sfetsos, K., & Nunez, C. (2013). On non-Abelian T-duality and new N = 1 backgrounds. Physics Letters B, 721(4-5), pp. 342-346. doi:10.1016/j.physletb.2013.03.033

Thompson, Daniel, Georgios Itsios, Carlos Núñez, Konstadinos Sfetsos, and Carlos Nunez. "On Non-Abelian T-duality and New N = 1 Backgrounds." Physics Letters B 721, no. 4-5 (2013): 342-346.

Thompson, Daniel, et al. "On Non-Abelian T-duality and New N = 1 Backgrounds." Physics Letters B 721.4-5 (2013): 342-346.