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Crack Detector. Nature 217, 798–799 (1968). https://doi.org/10.1038/217798b0
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DOI: https://doi.org/10.1038/217798b0
Nature volume 217, pages 798–799 (1968)
Crack Detector. Nature 217, 798–799 (1968). https://doi.org/10.1038/217798b0
Issue Date:
DOI: https://doi.org/10.1038/217798b0