Stress-induced changes in the electrical conductivity of igneous rocks and the generation of ground currents

Freund, F.T., A. Takeuchi, B.W.S. Lau, R. Post, J. Keefner, J. Mellon, and A. Al-Manaseer (2004), Stress-induced changes in the electrical conductivity of igneous rocks and the generation of ground currents, TAO, 15, 445-476.