M. Patel, L. Mathur, K. Jha, A. Kothari, I. Shastri, and P. K. Sharma, “Kinetics and Mechanism of the Oxidation of DL-Methionine by Tetrakis(Pyridine)silver Dichromate”, ajc, vol. 25, no. 5, pp. 2779–2782, Dec. 2012.