Zhao, Y., B. Zhao, and F. Qian. “Electrical Streaming Potential Precursors to Catastrophic Earthquakes in China”. Annals of Geophysics 40, no. 2 (November 25, 1997). Accessed April 20, 2024. https://www.annalsofgeophysics.eu/index.php/annals/article/view/3906.