Nguyen, Y. N., H. M. Le, T. A. Dao, H. N. Tran, T. N. Nguyen, T. H. Le, and K. Q. Dang. “Preparation of Transparent MgAl2O4 Spinel by Pulsed Electric Current Sintering Using Two-Step Heating Method”. Acta Metallurgica Slovaca, vol. 27, no. 4, Dec. 2021, pp. 203-6, doi:10.36547/ams.27.4.1212.