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- Day, A.H. (author) report 1994
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- Farr, Bruce (author), Oliver, Clay (author) report 1993
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- Pinkster, Jo A. (author) report 1991
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- Onnink, Ruud (author) report 1991
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- Onnink, Ruud (author) report 1990
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- Pinkster, Jo A. (author) report 1990
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- Miller, Richards T. (author), Kirkman, K.L. (author) report 1990