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2. Molybdenum Chemistry of Biological Significance;Newton,1980
3. Trace Element Analytical Chemistry in Medicine and Biology;Hurliy,1984
4. Some aspects of the bioinorganic chemistry of molybdenum;Swedo;J. Chem. Educ.,1979
5. Molybdenum and Molybdenum Containing Enzymes;Coughlan,1980