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Orme-Johnson, W H., R E. Hansen, H. Beinert, J C. Tsibris, R C. Bartholomaus, und I C. Gunsalus. On the Sulfur Components of Iron-sulfur Proteins. I. The Number of Acid-labile Sulfur Groups Sharing an Unpaired Electron With Iron. 1968.

Orme-Johnson, W H., et al. On the Sulfur Components of Iron-sulfur Proteins. I. The Number of Acid-labile Sulfur Groups Sharing an Unpaired Electron With Iron. 1968.