Jan Hendrik de Boer

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1	Hf Hafnium by James B. Hedrick Yearend Hafnium Sponge Metal Price (Dollars per kilogram) Add to Reading List Source URL: minerals.usgs.gov Language: English - Date: 1999-10-05 10:47:22 Transition metals Zirconium Hafnium Chlorides Metal halides Crystal bar process Jan Hendrik de Boer Control rod Zircon Chemistry Matter Chemical elements
2	ndsbv1_B[removed] Add to Reading List Source URL: www.kncv.nl Language: English - Date: 2012-08-26 13:35:32 De Boer Delft University of Technology Catalysis Science Physics Technology Jan Hendrik de Boer Philips Natuurkundig Laboratorium Crystal bar process
3	PDF Document Add to Reading List Source URL: minerals.er.usgs.gov Language: English - Date: 1999-10-05 10:47:22 Transition metals Zirconium Hafnium Chlorides Metal halides Crystal bar process Jan Hendrik de Boer Control rod Zircon Chemistry Matter Chemical elements