Winners, blockers, and the status quo: S
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James D. Laing; Sampei Nakabayashi; Benjamin Slotznick
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Article
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1983
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Springer US
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English
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We thank Robin Forman for two useful proofs, Peter H. Aranson, Howard Rosenthal, Kriss A. Sjoblom, and anonymous referees for thoughtful comments, DouglasH. Blair for calling Greenberg's (1979) important results to our attention, and Patricia Cook for typing the manuscript.