1. Recent re-analyses arrive at basically the same prediction, see: U. Nierste, Talk given at Workshop on B Physics at the Tevatron, Run II and Beyond, FNAL, September 23–25, 1999
2. “Workshop on the Tau/Charm Factory”, Argonne National Laboratory;Burdman,1995
3. Can nearby resonances enhance mixing?
4. Charm nonleptonic decays and final state interactions