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@article {Hsu:1998:0020-0190:227,
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@article {Eggleston:1998:0020-0190:231,
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@article {Fricke:1998:0020-0190:239,
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@article {Miura:1998:0020-0190:245,
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@article {Sinclair:1998:0020-0190:255,
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@article {Zou:1998:0020-0190:261,
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@article {Kohn:1998:0020-0190:267,
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