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2.
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BrodyJ. K., ANL Report AECD-2994, USAEC, Oak Ridge, Tennessee.
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BroidaH. P. and MoyerJ. W., Report KAPL-502, Knolls Atomic Power Laboratory, Schenectady, New York (1951).
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TomkinsF. S. and FredM., Report AECD-3100, Argonne National Laboratory, Chicago, Illinois (1951).
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HarrisonG. R., J. Opt. Soc. Am.39, 413 and 522 (1949).
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RichardsonD.WileyR. S. and SheldonG. J., J. Opt. Soc. Am.40, 259 (1950).
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BlochF., Phys. Rev.70, 460 (1946); PurcellE. U.TorreyH. C. and PoundR. V., Phys. Rev.69, 37 (1946).
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WalchliH. E. and LeyshonW. E., unpublished material, Oak Ridge National Laboratory (1951).
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