Gravitation and Cosmology.
Vol. 15.
2009.
P. 158-163
Classical anisotropic cosmological models are described in terms of the Raychaudhuri equation for a perfect fluid. Quantum ones are considered using the Wheeler-DeWitt equation. The Universe birth probability has been calculated for a flat model with dust and de Sitter vacuum. © 2009 Pleiades Publishing, Ltd.