In citing our works, please refer to the UTfit web site, where the most updated results can be found, and, depending on the subject, to the most recent publication where the methods are described.
In particular, for the analysis of the unitarity triangle in the Standard Model you could cite
%\cite{Bona:2006ah}
\bibitem{Bona:2006ah}
M.~Bona {\it et al.} [UTfit Collaboration],
%``The Unitarity Triangle Fit in the Standard Model and Hadronic Parameters from Lattice QCD: A Reappraisal after the Measurements of Delta m(s) and BR(B ---> tau nu(tau)),''
JHEP {\bf 0610} (2006) 081 [hep-ph/0606167].
and for the New Physics analysis please refer to:
%\cite{Bona:2006sa}
\bibitem{Bona:2006sa}
M.~Bona {\it et al.} [UTfit Collaboration],
%``Constraints on new physics from the quark mixing unitarity triangle,''
Phys.\ Rev.\ Lett.\ {\bf 97} (2006) 151803 [hep-ph/0605213].
%\cite{Bona:2007vi}
\bibitem{Bona:2007vi} M.~Bona {\it et al.} [UTfit Collaboration],
%``Model-independent constraints on $\Delta F=2$ operators and the scale of new physics,''
JHEP {\bf 0803} (2008) 049 [arXiv:0707.0636 [hep-ph]].
In one click with INSPIRE all papers