Dupont, Johan L., and Flemming Lindblad Johansen. “Remarks on Determinant Line Bundles, Chern-Simons Forms and Invariants”. MATHEMATICA SCANDINAVICA 91, no. 1 (September 1, 2002): 5–26. Accessed April 29, 2024. https://www.mscand.dk/article/view/14376.