D-Brane Charges in Gepner Models
  We construct Gepner models in terms of coset conformal field theories and compute their twisted equivariant K-theories. These classify the D-brane charges on the associated geometric backgrounds and therefore agree with the topological K-theories. We show this agreement for various cases, in particular the Fermat quintic. 
Volker Braun, Sakura Schafer-Nameki