Title
Recommended Citation
Postprint version. Published in Nature, Volume 330, November 19, 1987, pages 208-208. Copyright © 1987 Nature Publishing Group. The definitive version is available at http://dx.doi.org/10.1038/330208a0.
NOTE: At the time of publication, the author Richard B. Frankel was not yet affiliated with Cal Poly.
Disciplines
Physics
URL: http://digitalcommons.calpoly.edu/phy_fac/264