  Combining several techniques, we propose an efficient and numerically
reliable method to perform the quantum number projection and configuration
mixing for most general mean-field states, i.e., the Hartree-Fock-Bogoliubov
(HFB) type product states without symmetry restrictions. As for example of
calculations, we show the results of the simultaneous parity, number and
angular-momentum projection from HFB type states generated from the cranked
Woods-Saxon mean-field with a very large basis that is composed of Nmax=20
spherical harmonic oscillator shells.
