A. Zupanc, et al (Belle Collaboration):
Improved measurement of B0bar -> Ds-D+ and search for B0bar -> Ds+Ds- at Belle

Contributed to
22nd International Symposium on Lepton-Photon Interactions at High Energy (LP 2005),
Uppsala, Sweden, 30 Jun - 5 Jul 2005
and contributed to
EPS International Europhysics Conference on High Energy Physics (HEPP-EPS 2005),
Lisbon, Portugal, 21-27 Jul 2005

More information in hep-ex/0508040