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Physical Review Letters – 19 November 1990
Volume 65, Issue 21

LETTERS

General Physics

Elementary Particles and Fields

Atomic, Molecular, and Optical Physics

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Condensed Matter: Structure, Etc.

Condensed Matter: Electronic Properties, Etc.

Cross-Disciplinary Physics

COMMENTS

ERRATA