[1] J. L. Harris, J. Opt. Soc. Am. 54, 931 (1964).
[2] R. W. Gerchberg, Opt. Acta 21, 709 (1974).
[3] P. J. Sementilli, B. R. Hunt, and M. S. Nadar, J. Opt. Soc. Am. A 10, 2265 (1993).
[4] M. Fuderer, Proc. SPIE 1137, 84 (1989).
[5] A. H. Lettington and Q. H. Hong, IEE Proc. 141, 9 (1994).
[6] W. Lukosz, J. Opt. Soc. Am. 57, 932 (1967).
[7] P. C. Sun and E. N. Leith, Appl. Opt. 31, 4857 (1992).
[8] A. H. Letting, Q. H. Hong, and S. Tzimopoulou, Appl. Opt. 35, 5258 (1996).
[9] A. Mudassar, A. R. Harvey, A. H. Greenaway, and J. Jones, J. Phys.: Conf. Ser. 15, 290 (2005).