Limited (search only) v. 1-2 1990/1991
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Purdue University
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Limited (search only) v.1(1990)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.2 1991
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University of Minnesota
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Limited (search only) v. 3-4 1992/1993
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Purdue University
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Limited (search only) v.3(1992)
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University of Illinois at Urbana-Champaign
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Full view v.4 1993
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Indiana University
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Limited (search only) v. 5-6 1994/1995
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Purdue University
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Full view v.5 1994
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Indiana University
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Full view v.6 1995
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Indiana University
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Limited (search only) v. 7-8 1996-1997
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Purdue University
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Full view v.7 1996
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Indiana University
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Full view v.8 1997
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Indiana University
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Full view v.9 1999
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Indiana University
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Limited (search only) v.10 2001
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The Ohio State University
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Limited (search only) v.11 2006
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The Ohio State University
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