1. W. H. Bennett, J. Appl. Phys.,21, 143, 1950.
2. P. A. Redhead andC. R. Crovell, J. Appl. Phys.,24, 331, 1953.
3. E. g. seeR. Wood, Physical Optics p. 242, MacMillan, New York, 1933.
4. E. g. seeJ. Valasek, Introduction to Theoretical and Experimental Optics, John Wiley, New York, 1949.