The preceding Comment [Phys. Rev. A 41, 4549 (1990)] by Zhu and Shen is incorrect on a number of issues.
DOI:https://doi.org/10.1103/PhysRevA.41.4550
©1990 American Physical Society
David L. Andrews and Nick P. Blake
Vol. 41, Iss. 8 — April 1990
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