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- Chen, D. (author), Schijve, J. (author) report 1991
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- Chen, D. (author) report 1990
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- Chen, D. (author) report 1989
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- Chen, Qingyan (author) doctoral thesis 1988
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- Chen, D. (author) report 1988
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- Chen, D. (author), Smulders, F.E.H.M. (author), Vogelesang, L.B. (author) report 1988
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- Chen, D. (author) report 1987
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- Chen, D. (author) report 1987
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- Chen, D. (author) report 1987