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Optica Acta : New European Journal of Optics. Nature 173, 109 (1954). https://doi.org/10.1038/173109c0
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DOI: https://doi.org/10.1038/173109c0
Nature volume 173, page 109 (1954)
Optica Acta : New European Journal of Optics. Nature 173, 109 (1954). https://doi.org/10.1038/173109c0
Issue Date:
DOI: https://doi.org/10.1038/173109c0