1. Butler, R. N. “Synthetic Reagents”. Edited by: Pizey, J. S. Vol. 3, p. 277Ellis Harwood Ltd., John Wiley & Sons.
2. Criegee, R. 1965. “Oxidation in Organic Chemistry”. Edited by: Wilberg, K. B. pp 277–366. Academic Press.
3. The oxidation of organic nitrogen compounds with lead tetra-acetate