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PETRA apprehensive of US rival. Nature 282, 546 (1979). https://doi.org/10.1038/282546b0
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DOI: https://doi.org/10.1038/282546b0
Nature volume 282, page 546 (1979)
PETRA apprehensive of US rival. Nature 282, 546 (1979). https://doi.org/10.1038/282546b0
Issue Date:
DOI: https://doi.org/10.1038/282546b0