References
- GABOR , D. 1946 . J. Instn elect. Engrs , 93 : 429
- WOLF , E. 1955 . Proc. roy. Soc. A , 230 : 246
- WOLF , E. 1958 . Proc. phys. Soc. Lond. , 71 : 257
- BORN , M. and WOLF , E. 1959 . Principles of Optics , London : Pergamon Press .
- TRICOMI , F. G. 1957 . Integral Equations , New York : Interscience Publishers .
- TITCHMARSH , E. C. 1939 . Theory of Functions , 2nd Edition , London : Oxford University Press .
- WHITTAKER , E. T. and WATSON , G. N. 1950 . Course of Modern Analysis , Cambridge : University Press .