Galois Modular Invariants of WZW Models
  The set of modular invariants that can be obtained from Galois transformations is investigated systematically for WZW models. It is shown that a large subset of Galois modular invariants coincides with simple current invariants. For algebras of type B and D infinite series of previously unknown exceptional automorphism invariants are found. 
J. Fuchs, A. N. Schellekens, and C. Schweigert