Limited (search only) v.15 no.11 Nov. 1990
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University of California
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Limited (search only) v.16 no.7 1991
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University of California
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Limited (search only) v.20
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University of California
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Limited (search only) v.20 no.1 Jan. 1995
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University of California
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Limited (search only) v.20 no.10 Oct. 1995
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University of California
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Limited (search only) v.21-23 1996-1998
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University of California
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Limited (search only) v.21(1996)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.22:1(1997)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.23
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University of California
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Limited (search only) v.24-26 1999-2001
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Cornell University
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Limited (search only) v.24
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University of California
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Limited (search only) v.25
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University of California
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Limited (search only) v.26
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University of California
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Limited (search only) v.26 no.1-7 Jan.-July 2001
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University of California
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Limited (search only) v.26 no.8-12 Aug.-Dec. 2001
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University of California
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Limited (search only) v.27
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University of California
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Limited (search only) v.27 no.1-5 Jan.-May 2002
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University of California
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Limited (search only) v.27 no.6-12 June-Dec. 2002
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University of California
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Limited (search only) v.28-29
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University of Illinois at Urbana-Champaign
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Limited (search only) v.30(2005)
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University of Illinois at Urbana-Champaign
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