1. Wakiya, S. 1967 Slow motions of a viscous fluid around two spheres.J. Phys. Soc. Japan 22,1101–1109.
2. Ganatos, P. , Weinbaum, S. & Pfeffer, R. 1982 Gravitational and zero-drag motion of a sphere of arbitrary size in an inclined channel at low Reynolds number.J. Fluid Mech. 124,27–43.
3. Davis, A. M. J. , O'Neill, M. E. , Dorrepaal, J. M. & Ranger, K. B. 1976 Separation from the surface of two equal spheres in Stokes flow.J. Fluid Mech. 77,625–644.
4. Dean, W. R. & O'Neill, M. E. 1963 A slow motion of viscous liquid caused by the rotation of a solid sphere.Mathematica 10,13–26.
5. Durlofsky, L. , Brady, J. F. & Bossis, G. 1987 Dynamic simulation of hydrodynamically interacting particles.J. Fluid Mech. 180,21–49.