1. Adamović, D., Milas, A.: The N = 1 triplet vertex operator superalgebras: twisted sector. SIGMA 4, 24 pp, Paper 087 (2008)
2. Barron, K.: N = 1 Neveu-Schwarz vertex operator superalgebras over Grassmann algebras and with odd formal variables. In: Representations and Quantizations: Proceedings of the International Conference on Representation Theory, July 1998, Shanghai China, pp. 9–39. Springer, Berlin (2000)
3. Barron, K.: The notion of N = 1 supergeometric vertex operator superalgebra and the isomorphism theorem. Commun. Contemp. Math. 5(4), 481–567 (2003)
4. Barron, K.: Axiomatic aspects of N = 2 vertex superalgebras with odd formal variables. Commun. Algebra 38, 1199–1268 (2010)
5. Barron, K.: Twisted modules for N = 2 supersymmetric vertex operator superalgebras arising from finite automorphisms of the N = 2 Neveu-Schwarz algebra (2011). arXiv:1110.0229