Limited (search only) v.4-8 1998-2002
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Cornell University
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Limited (search only) 1979:Feb.-1980
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University of Illinois at Urbana-Champaign
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Limited (search only) 1979-1981
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Cornell University
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Limited (search only) 1981
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University of Illinois at Urbana-Champaign
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Limited (search only) 1982
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University of Illinois at Urbana-Champaign
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Limited (search only) 1982-1984
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Cornell University
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Limited (search only) 1983
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University of Illinois at Urbana-Champaign
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Limited (search only) 1984
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University of Illinois at Urbana-Champaign
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Limited (search only) 1985
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University of Illinois at Urbana-Champaign
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Limited (search only) 1985-1987
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Cornell University
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Limited (search only) 1986-1992
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University of Illinois at Urbana-Champaign
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Limited (search only) 1988-1990
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Cornell University
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Limited (search only) 1991-1992
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Cornell University
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Limited (search only) 1993-1994
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University of Illinois at Urbana-Champaign
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Limited (search only) 1993-1997
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Cornell University
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Limited (search only) 1995-1999
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University of Illinois at Urbana-Champaign
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Full view 1999-2002 (Incompl.)
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University of Illinois at Urbana-Champaign
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