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Seventh International Astronautical Congress. Nature 178, 523 (1956). https://doi.org/10.1038/178523a0
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DOI: https://doi.org/10.1038/178523a0
Nature volume 178, page 523 (1956)
Seventh International Astronautical Congress. Nature 178, 523 (1956). https://doi.org/10.1038/178523a0
Issue Date:
DOI: https://doi.org/10.1038/178523a0