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Science, Industry and Government

Naturevolume 222page1009 (1969) | Download Citation

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  1. Town House Motel, 15661 Euclid Avenue, East Cleveland, Ohio, 44112, USA

    • V. C. REDDISH
  2. Department of Astronomy, University of Edinburgh

    • V. C. REDDISH

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https://doi.org/10.1038/2221009a0

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