Hassan, Tunis B. “Gas Sensing Performance of Sol-Gel Grown NiO-Doped Cr2O3 Nanoparticles”. Iraqi Journal of Physics 16, no. 37 (September 11, 2018): 15–22. Accessed November 21, 2024. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/72.