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Automation, Leisure and Youth Services. Nature 203, 921 (1964). https://doi.org/10.1038/203921a0
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DOI: https://doi.org/10.1038/203921a0
Nature volume 203, page 921 (1964)
Automation, Leisure and Youth Services. Nature 203, 921 (1964). https://doi.org/10.1038/203921a0
Published:
Issue Date:
DOI: https://doi.org/10.1038/203921a0