1. A worldsheet extension of O(d,d|Z);Bachas;J. High Energy Phys.,2012
2. A quick guide to defect orbifolds;Brunner;Proc. Symp. Pure Math.,2014
3. Landau–Ginzburg realization of open string TFT;Brunner;J. High Energy Phys.,2003
4. Lectures on Tensor Categories and Modular Functors;Bakalov,2001