Limited (search only) 1988
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University of Illinois at Urbana-Champaign
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Limited (search only) 1989
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University of Illinois at Urbana-Champaign
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Limited (search only) 1989
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University of Illinois at Urbana-Champaign
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Limited (search only) 1990
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University of Illinois at Urbana-Champaign
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Limited (search only) 1990
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University of Illinois at Urbana-Champaign
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Limited (search only) 1991
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University of Illinois at Urbana-Champaign
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Limited (search only) 1991
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University of Illinois at Urbana-Champaign
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Limited (search only) 1992
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University of Illinois at Urbana-Champaign
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