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2. Proceedings of the Workshop on Trends in Speciation Analysis — Discussion on organometallic speciation,1994
3. Proceedings of the Workshop on Trends in Speciation Analysis — Discussion on inorganic speciation,1995
4. Interlaboratory studies as a tool for many purposes: proficiency testing, learning exercises, quality control and certification of matrix materials
5. 5th Colloquium Atomspektrometrische Spurenanalytik, Perkin-Elmer;Donard,1990