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2. A.A. Gersun, Svetovoe Pole (GTTI, Moscow, 1936) (The Light Field, translated by P. Moon and G. Timoshenko, J. Math. Phys., 1939, Vol. 19, p. 51)
3. J. Strong, Procedures in Experimental Physics (Prentice-Hall, Englewood Cliffs, 1942)
4. M.M. Gurevich, Introduction to Photometry (Energia, Leningrad, 1968; 2nd edn., 1983)
5. R. Frieden, Probability, Statistical Optics and Data Testing: A Problem Solving Approach (Springer, New York, 1991)