Article PDF
Rights and permissions
About this article
Cite this article
The Royal Society. Nature 198, 737 (1963). https://doi.org/10.1038/198737c0
Issue Date:
DOI: https://doi.org/10.1038/198737c0
Nature volume 198, page 737 (1963)
The Royal Society. Nature 198, 737 (1963). https://doi.org/10.1038/198737c0
Issue Date:
DOI: https://doi.org/10.1038/198737c0