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Physical Review Letters – 29 June 1992
Volume 68, Issue 26

LETTERS

General Physics

Gravitation and Astrophysics

Elementary Particles and Fields

Nuclear Physics

Atomic, Molecular, and Optical Physics

Plasma and Beam Physics

Condensed Matter: Structure, Etc.

Condensed Matter: Electronic Properties, Etc.

Cross-Disciplinary Physics

COMMENTS

ERRATA