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- [12] DETERMINATION OF TRACE AMOUNTS OF OXYGEN IN METALS BY SPARK SOURCE MASS SPECTROMETRY FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1971, 256 (02): : 103 - &
- [15] DIRECT DETERMINATION OF OXYGEN IN COAL ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1969, (APR): : FU04 - +