S.  Velu, Suzuki, K., Vijayaraj, M., Barman, S., and Gopinath, C. S., ?In situ XPS investigations of Cu1-xNixZnAl-mixed metal oxide catalysts used in the oxidative steam reforming of bio-ethanol?, Applied Catalysis B - Environmental, vol. 55, no. 4, pp. 287-299, 2005.

M. P.  Wadekar, Rode, C. V., Bendale, Y. N., Patil, K. R., and Prabhune, A., ?Preparation and characterization of a copper based Indian traditional drug: tamra bhasma?, Journal of Pharmaceutical and Biomedical Analysis, vol. 39, no. 5, pp. 951-955, 2005.