Relationship Between the Kobayashi-Maskawa and Chau-Keung Presentations   of the Quark Mixing Matrix
  We discuss the formulas for one-to-one correspondence between the two popular parametrizations of the quark mixing matrix and the confidence limits for the mixing parameters. 
Valentin E. Kuznetsov (Joint Institute for Nuclear Research) and Vadim   A. Naumov (Instituto Nazionale di Fizica Nucleare)