S. S.  Badadhe and Mulla, I. S., ?Effect of aluminium doping on structural and gas sensing properties of zinc oxide thin films deposited by spray pyrolysis?, Sensors and Actuators B-Chemical, vol. 156, no. 2, pp. 943-948, 2011.

S.  Shylesh, Kapoor, M. P., Juneja, L. R., Srilakshmi, C., and Singh, A. P., ?Synthesis and characterization of bifunctional ethenylene bridged mesoporous organoaluminosilicates?, Nanoscience and Nanotechnology Letters, vol. 3, no. 4, pp. 497-502, 2011.