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NOVEL USE OF CROWN ETHERS IN CHEMICAL IONIZATION MASS SPECTROMETRYBOSE AK; PRAKASH O; GENG YUAN HU et al.1983; JOURNAL OF ORGANIC CHEMISTRY; ISSN 0022-3263; USA; DA. 1983; VOL. 48; NO 10; PP. 1780-1782; BIBL. DISSEM.Article

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