Neeti Bhargava and P. Pradhan, M. L. Sharma, and V. K. Katiyar. “Electric Charge Developed by Seismic Stress on Earthquake Sources and Its Effect on Animals”. Journal of International Academy of Physical Sciences, vol. 14, no. 2, June 2010, pp. 205-14, https://www.iaps.org.in/journal/index.php/journaliaps/article/view/318.