1. L. Mandel and E. Wolf: Optical Coherence and Quantum Optics (Cambridge University Press, New York, 1995) p. 41.
2. J. W. Goodman: Statistical Optics (Wiley, New York, 1985) p. 60.
3. E. Wolf: Introduction to the Theory of Coherence and Polarization of Light (Cambridge University Press, Cambridge, U.K., 2007) p. 11.
4. J. W. Goodman: Speckle Phenomena in Optics, Theory and Applications (Roberts & Co., Greenwood Village, CO, 2007).
5. Advances in Speckle Metrology and Related Techniques, ed. G. H. Kaufmann (Wiley-VCH, Weinheim, 2011).