Limited (search only) 1967-71
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University of Minnesota
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Limited (search only) 1972-76
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University of Minnesota
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Limited (search only) 1975-1977
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Northwestern University
|
Limited (search only) 1975-1978
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University of Illinois at Urbana-Champaign
|
Limited (search only) 1978
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Northwestern University
|
Limited (search only) 1979-1982
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University of Illinois at Urbana-Champaign
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Limited (search only) 1979-1983:inc.
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Northwestern University
|
Limited (search only) 1983-1986
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University of Illinois at Urbana-Champaign
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Limited (search only) 1984
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Northwestern University
|
Limited (search only) 1985
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Northwestern University
|
Limited (search only) 1986
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Northwestern University
|
Limited (search only) 1987
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Northwestern University
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