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Physical Review Letters – 30 April 1990
Volume 64, Issue 18

LETTERS

General Physics

Gravitation and Astrophysics

Elementary Particles and Fields

Nuclear Physics

Nonlinear Dynamics, Fluid Dynamics, Classical Optics, Etc.

Plasma and Beam Physics

Condensed Matter: Structure, Etc.

Condensed Matter: Electronic Properties, Etc.

COMMENTS

ERRATA