1. Dynamics of Fluids in Porous Media;Bear,1972
2. Hydraulics of Groundwater;Bear,1979
3. Conduction of Heat in Solids;Carslaw,1960
4. Perturbation Methods in Applied Mathematics;Cole,1968
5. Perturbation solutions of the dispersion equation in porous mediums;Dagan;Water Resour. Res.,1971