Jiang, Fenghua. 2013. ‚ÄúPreparation and Characterization on Nano-Powder Al2O3-ZrO2 by Ultrasound Field Co-Precipitation‚ÄĚ. Asian Journal of Chemistry 25 (17), 9917-19. https://asianpubs.org/index.php/ajchem/article/view/8485.