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Engineering: Stronger Towers. Nature 221, 991–992 (1969). https://doi.org/10.1038/221991b0
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DOI: https://doi.org/10.1038/221991b0
Nature volume 221, pages 991–992 (1969)
Engineering: Stronger Towers. Nature 221, 991–992 (1969). https://doi.org/10.1038/221991b0
Issue Date:
DOI: https://doi.org/10.1038/221991b0