Trends in usage of rare earths: report of the panel on rare earths of the committee on the technical aspects of critical and strategic materials - Washington: NRC, NAS-NAE, 1970 - xiii, 81p.: ill.; 27cm.


Rare earths
Rare earths--Electrical properties
Rare earths--Optical properties
Rare earths--Spectra
Rare earths--Magnetic properties

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