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By: Pettersson, Hans - Fredriksson, KurtType: ArticleIn: Pacific scienceVolume: 12Series:Issue: 1Date: 1958Page Range: 71--81Publication Info: Honolulu, University Press of Hawaii,Subjects:
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By: Pettersson, HansType: ArticleIn: Pacific scienceVolume: 8Series:Issue: 3Date: 1954Page Range: 359--362Publication Info: Honolulu, University Press of Hawaii,Subjects: