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          <dc:title xml:lang="en">Antihelium in Cosmic Rays: A New Upper Limit and Its Significance</dc:title>
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          <datacite:description descriptionType="Other">著者人数: 26名</datacite:description>
          <datacite:description descriptionType="Other">Accepted: 1997-04-03</datacite:description>
          <datacite:description descriptionType="Other">資料番号: SA1003512000</datacite:description>
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          <datacite:date dateType="Issued">1997-06-20</datacite:date>
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          <jpcoar:sourceTitle xml:lang="en">The Astrophysical Journal Letters</jpcoar:sourceTitle>
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          <jpcoar:issue>2</jpcoar:issue>
          <jpcoar:pageStart>L187</jpcoar:pageStart>
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