Article PDF
Rights and permissions
About this article
Cite this article
Announcements. Nature 236, 129 (1972). https://doi.org/10.1038/236129a0
Issue Date:
DOI: https://doi.org/10.1038/236129a0
Nature volume 236, page 129 (1972)
Announcements. Nature 236, 129 (1972). https://doi.org/10.1038/236129a0
Issue Date:
DOI: https://doi.org/10.1038/236129a0