Lawrence, C. C., Bennati, M., Obias, H. V., Bar, G., Griffin, R. G., & Stubbe, J. (1999). High-field EPR detection of a disulfide radical anion in the reduction of cytidine 5′-diphosphate by the E441Q R1 mutant of Escherichia coli ribonucleotide reductase. The National Academy of Sciences.

Lawrence, Christopher C., Marina Bennati, Honorio V. Obias, Galit Bar, Robert G. Griffin, a Joanne Stubbe. High-field EPR Detection of a Disulfide Radical Anion in the Reduction of Cytidine 5′-diphosphate By the E441Q R1 Mutant of Escherichia Coli Ribonucleotide Reductase. The National Academy of Sciences, 1999.

Lawrence, Christopher C., et al. High-field EPR Detection of a Disulfide Radical Anion in the Reduction of Cytidine 5′-diphosphate By the E441Q R1 Mutant of Escherichia Coli Ribonucleotide Reductase. The National Academy of Sciences, 1999.