DOI:https://doi.org/10.1103/PhysRevLett.86.4981
©2001 American Physical Society
T. Hartmann, J. Enders, P. Mohr, K. Vogt, S. Volz, and A. Zilges
Vol. 86, Iss. 21 — 21 May 2001
Sign up to receive regular email alerts from Physical Review Letters