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- 692 Physical Sciences
- 22 |||
- 15 Spectrophotometric
- 13 Uranium
- 11 Actinides
- 11 Metal Complexes
- 11 Oxidation
- 11 Polymers
- 10 Reagents
- 9 Chromatography
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Year Completed
- 336 1990 - 1999
- 189 1980 - 1989
- 99 1970 - 1979
- 38 1960 - 1969
- 17 1950 - 1959
- 11 1940 - 1949
- 2 1938 - 1939