1. Bachmat , Y. Hydrodynamic dispersion in non-uniform flow through porous media taking into account density and viscosity differences Haifa 1966
2. Bear , J. Y. Bachmat A generalized theory on hydrodynamic dispersion in porous media, IASH Symp. of Haifa, Publ. No. 72 7 16 1967
3. Dispersion due to molecular diffusion and macroscopic mixing in flow through a network of capillaries;Saffman;J. Fluid Mech.,1960