N.  Jagtap, Umbarkar, S. B., Miquel, P., Granger, P., and Dongare, M. K., ?Support modification to improve the sulphur tolerance of Ag/Al2O3 for SCR of NOx with propene under lean-burn conditions?, Applied Catalysis B-Environmental, vol. 90, no. 3-4, pp. 416-425, 2009.