D.  Patil, Patil, P., Subramanian, V., Joy, P. Alias, and Potdar, H. S., ?Highly sensitive and fast responding CO sensor based on Co3O4 nanorods?, Talanta, vol. 81, no. 1-2, pp. 37-43, 2010.

V.  Subramanian, Gnanakumar, E. S., Jeong, D. - W., Han, W. - B., Gopinath, C. S., and Roh, H. - S., ?Rationally designed CuFe2O4-mesoporous Al2O3 composite towards stable performance of high temperature water-gas shift reaction?, Chemical Communications, vol. 49, no. 96, pp. 11257-11259, 2013.