Semileptonic and nonleptonic decays of Bc
  Using our relativistic constituent quark model we present results on the exclusive nonleptonic and semileptonic decays of the Bc-meson. The nonleptonic decays are studied in the framework of the factorization approximation. We calculate the branching ratios for a large set of exclusive nonleptonic and semileptonic decays of the Bc-meson and compare our results with the results of other models. 
Mikhail A. Ivanov, Juergen G. Korner, Pietro Santorelli