Article PDF
Rights and permissions
About this article
Cite this article
[Correspondence]. Nature 224, 930–931 (1969). https://doi.org/10.1038/224930c0
Issue Date:
DOI: https://doi.org/10.1038/224930c0
Nature volume 224, pages 930–931 (1969)
[Correspondence]. Nature 224, 930–931 (1969). https://doi.org/10.1038/224930c0
Issue Date:
DOI: https://doi.org/10.1038/224930c0