Article PDF
Rights and permissions
About this article
Cite this article
Prof. T. H. Berlin. Nature 197, 338 (1963). https://doi.org/10.1038/197338b0
Issue Date:
DOI: https://doi.org/10.1038/197338b0
Nature volume 197, page 338 (1963)
Prof. T. H. Berlin. Nature 197, 338 (1963). https://doi.org/10.1038/197338b0
Issue Date:
DOI: https://doi.org/10.1038/197338b0