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| E. Wolf.
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| J.R. Fries and L.J. Ross.
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| J.B. de Boer.
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| D.M. Finch.
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| D. Klebelsberg.
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| A.W. Christie and K.S. Rutley.
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| D. v. Klebelsberg
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| Hoffmann, H.
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| Boer, J.B. de
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| Turner, H.J.