Article PDF
Rights and permissions
About this article
Cite this article
Announcements. Nature 258, 276 (1975). https://doi.org/10.1038/258276a0
Issue Date:
DOI: https://doi.org/10.1038/258276a0
Nature volume 258, page 276 (1975)
Announcements. Nature 258, 276 (1975). https://doi.org/10.1038/258276a0
Issue Date:
DOI: https://doi.org/10.1038/258276a0