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- Potze, Willem (author), Sparenberg, J.A. (author) report
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- Sparenberg, Johan Adolf (author) report
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- Sparenberg, Johan Adolf (author) report
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- Sparenberg, Johan Adolf (author) journal article 1970
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- Sparenberg, Johan Adolf (author) report
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- Sparenberg, J.A. (author) report 1969
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- Sparenberg, Johan Adolf (author) conference paper 1968
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- Sparenberg, Johan Adolf (author) public lecture 1962
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- Joosen, W.P.A. (author), Sparenberg, J.A. (author) journal article 1961
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- Sparenberg, Johan Adolf (author) conference paper 1960
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- Sparenberg, Johan Adolf (author) journal article 1959
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- Sparenberg, Johan Adolf (author) conference paper 1959
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- Sparenberg, Johan Adolf (author) doctoral thesis 1958
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