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19th meeting of the CGPM

30 September to 4 October 1991

Meeting report

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CGPM Resolution 1 (1991)

Time standards and time comparisons

CGPM Resolution 2 (1991)

The Josephson and quantum-Hall effects

CGPM Resolution 3 (1991)

The International Temperature Scale of 1990 (ITS-90) and future work in thermometry

CGPM Resolution 4 (1991)

SI prefixes zetta, zepto, yotta and yocto

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