Exact Self-consistent Solutions to the Interacting Spinor and Scalar   Field Equations in Bianchi Type-I Space-time
  Self-consistent solutions to the system of spinor and scalar field equations in General Relativity are studied for the case of Bianchi type-I space-time. It should be emphasized the absence of initial singularity for some types of solutions and also the isotropic mode of space-time in some special case. 
R. Alvarado, Yu. P. Rybakov, B. Saha and G. N. Shikin