Wilson, P., and R.P. Viswanath. “Characterization of Surface Chromia Species on CrOx TiO2 Catalysts”. Eurasian Chemico-Technological Journal 4, no. 4 (October 20, 2002): 249–252. Accessed April 5, 2026. https://ect-journal.kz/index.php/ectj/article/view/347.