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2by Vajda, F. J. E (Frank J. E.), Vajda, F. J. E (Frank J. E.), Vajda, F. J. E (Frank J. E.), Vajda, F. J. E (Frank J. E.)
Published 2016
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3by Spenceley, G. F. R (Geoffrey F. R.), Spenceley, G. F. R (Geoffrey F. R.), Spenceley, G. F. R (Geoffrey F. R.)
Published 1990
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