DO Collaboration Phys. Rev. D74, 031107 (2006)
Citation check: Okay.

DO Collaboration, (V. Abazov etal), DO Note 5344-CONF (2007).

Belle Collaboration Phys. Rev. D76, 012002 (2007)
Citation check: Okay.

Belle Collaboration Phys. Rev. Lett. 100, 121801 (2008)
******** Reference not found in SPIRES!!!! *********

CDF Collaboration Phys. Rev. Lett. 100, 101802 (2008)
Citation check: Okay.

CDF Collaboration Phys. Rev. Lett. 81, 5742 (1998)
Citation check: Okay.

CDF Collaboration Phys. Rev. Lett. 95, 031801 (2005)
Citation check: Okay.

CDF Collaboration, talk by M.~Rescigno at CKM 2006, Nagoya, Japan, Dec. 2006.

CDF Collaboration hep-ex/0612018
Yes, this one got published:
hep-ex/0612018 .... Nucl.Phys.Proc.Suppl.170:39-45,2007