A Comment on the Letter by L. L. Van Zandt, Phys. Rev. Lett. 57, 2085 (1986).
DOI:https://doi.org/10.1103/PhysRevLett.59.518
©1987 American Physical Society
N. J. Tao and S. M. Lindsay
A. Rupprecht
Vol. 59, Iss. 4 — 27 July 1987
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