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By: Keran, DougType: ArticleIn: Raptor researchVolume: 15Series:Issue: 4Date: 1981Page Range: 108--112Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Keran, DougType: ArticleIn: Raptor researchVolume: 12Series:Issue: 1-2Date: 1978Page Range: 15--20Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects: