1. L. The two-dimensional steady motion of a viscous fluid
2. S. Goldstein,Modern Developments in Fluid Dynamics(Dover, New York, 1965), p. 105.
3. The steady two-dimensional radial flow of viscous fluid between two inclined plane walls
4. H. L. Dryden, F. P. Murnaghan, and H. Bateman,Hydrodynamics(Dover, New York, 1956), p. 226.