M. A. M. Hassan, H. A. R. A. Hussian, and M. O. Dawood, “Synthesis of semiconductor oxide nanosheets, nanotetrapods and nanoplane-suite like grown on metal foil using different method”, Int. Nano Lett., vol. 5, no. 3 (September 2015), Apr. 2015, doi: 10.1007/s40089-015-0148-5.