Article PDF
Rights and permissions
About this article
Cite this article
USA. Nature 260, 89 (1976). https://doi.org/10.1038/260089a0
Issue Date:
DOI: https://doi.org/10.1038/260089a0
Nature volume 260, page 89 (1976)
USA. Nature 260, 89 (1976). https://doi.org/10.1038/260089a0
Issue Date:
DOI: https://doi.org/10.1038/260089a0