Cerchiai, B.L.; Pasqua, A.F. & Zumino, B. The Seiberg-Witten map for noncommutative gauge theories, article, June 26, 2002; (https://digital.library.unt.edu/ark:/67531/metadc741571/m1/1/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .