G. Syam Prasad, Krishna, J. Radha, Manjunath, M., Reddy, O. Vijaya Sar, Krishnaiah, M., Reddy, C. Suresh, and Puranik, V. G., ?Synthesis, NMR, X-ray crystallography and bioactivity of some alpha-aminophosphonates?, Arkivoc, no. Part No. 13, pp. 133-141, 2007.

S. D.  Mitragotri, Pore, D. M., Desai, U. V., and Wadgaonkar, P. P., ?Sulfamic acid: an efficient and cost-effective solid acid catalyst for the synthesis of alpha-aminophosphonates at ambient temperature?, Catalysis Communications, vol. 9, no. 9, pp. 1822-1826, 2008.

S. S.  Sonar, Shelke, K. F., Kakade, G. K., Shingate, B. B., and Shingare, M. S., ?Alum: an efficient catalyst for one-pot synthesis of alpha-aminophosphonates?, Chinese Chemical Letters, vol. 20, no. 9, pp. 1042-1046, 2009.