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2. Fast atom bombardment mass spectra of involatile naphthalene sulphonic acids and sulphonate salts
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4. and Proceedings of the 35th Conference on Mass Spectrometry and Allied Topics, Denver, CO, ASMS, East Lansing (1987).
5. and Proceedings of the 37th Conference on Mass Spectrometry and Allied Topics, Miami Beach, FL, ASMS, East Lansing (1989).