Limited (search only) 1976/1977
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University of Illinois at Urbana-Champaign
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Limited (search only) 1982/83
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University of Illinois at Urbana-Champaign
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Limited (search only) 1986/88
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University of Texas at Austin
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Limited (search only) 1988/92
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University of Texas at Austin
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Limited (search only) 1989/90
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University of Texas at Austin
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Limited (search only) yr.1991/92
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University of California
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Limited (search only) 1992/93
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University of Texas at Austin
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Limited (search only) 1993/94
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University of Texas at Austin
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Limited (search only) 1994/96
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University of Texas at Austin
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Limited (search only) 1996/98
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University of Texas at Austin
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Limited (search only) 1998/99
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University of Texas at Austin
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Limited (search only) 2002,04
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University of Texas at Austin
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Limited (search only) yr.2003/2004
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University of California
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