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1760 documents found.
Published:
| Shepard, R.N.
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| Winsemius, W.
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| Müller, K.J.
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| Lett, P.W.
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| Köhler, W.
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| Somereijer, E.M.
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| Boer, J.B. de
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| Boer, J.B. & Vermeulen, D.
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| Boer, J.B. & Vermeulen, D.