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2. P. Hariharan,Basics of Interferometry, Academic Press, Boston (1992).
3. Special issue, “#9 Journal—recent journal articles related to optical testing using speckle techniques,”Opt. Testing Digest2(4), (1997).
4. G. Kaufmann, A. Davila, and D. Kerr, “Interview-smoothing of speckle interferometry fringe-patterns,”Opt. Testing Digest2(4) (1997).