Birmingham, Danny and Sachs, I. and Sen, Siddhartha (1997) Three-Dimensional Black Holes and String Theory. (Preprint)
Birmingham, Danny and Kantowski, Ronald and Rakowski, Mark (1990) The Eta Function in Chern-Simons Field Theory. (Preprint)
Birmingham, Danny and Sen, Siddhartha (1990) Generalized Skein Relations from Chern-Simons Field Theory. (Preprint)