Selective free radical reactions with proteins and enzymes: reactions of inorganic radical anions with amino acids.

Adams, G. E., Aldrich, J. E., Bisby, R. H., Cundall, R. B., Redpath, J. L., & Willson, R. L. (1972). Selective free radical reactions with proteins and enzymes: reactions of inorganic radical anions with amino acids. Radiation Research, 49(2), 278–289. https://doi.org/10.2307/3573266