1. W.E. Alef, Propeller blade sections to be used in a non-homogeneous wake, Hamburg Model Basin, Report 1187 (1959).
2. H. Ashley and M. Landahl, Aerodynamics of Wings and Bodies, Addison-Wesley (1965).
3. M.P. Brandão, Improper integrals in theoretical aerodynamics: The problem revisited, AIAA Journal 25 (1987) 1258?1260.
4. T.E. Brockett, Propeller perturbation problems, U.S. Navy Naval Ship R & D. Center, Report 3880 (October, 1972).
5. T.E. Brockett, A subroutine for evaluation of one-dimensional singular integrals (SINGINT), Canadian Dept. of National Defence, Defence Research Establishment Atlantic, Tech Memo 79/F (1979).