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We study perfect fluid Stephani quantum cosmological model. In the presentwork the Schutz's variational formalism which recovers the notion of time isapplied. This gives rise to Wheeler-DeWitt equation for the scale factor. Weuse the eigenfunctions in order to construct wave packets for each case. Westudy the time-dependent behavior of the expectation value of the scale factor,using many-worlds and deBroglie-Bohm interpretations of quantum mechanics.

Quantum Stephani exact cosmological solutions and the selection of time variable