“Cr2O3:TiO2 Nanostructure Thin Film Prepared by Pulsed Laser Deposition Technique as NO2 Gas Sensor”, Baghdad Sci.J, vol. 17, no. 1(Suppl.), p. 0329, Mar. 2020, doi: 10.21123/bsj.2020.17.1(Suppl.).0329.