Chang, L., Z. Zhang, X. Zhao, X. Bian, Z. Zuo, H. Lu, and D. Lao. “Determining the Boundary of Molten Electrolyte and Aluminum in Electrolytic Cells by Detecting Their Vertical Distribution of Potential”. Instrumentation, vol. 9, no. 3, Sept. 2022, doi:10.15878/j.cnki.instrumentation.2022.03.002.