Ni, S., Anderson, J. G., Zeng, Y., & Siddharthan, R. (2000). Expected Signature of Nonlinearity on Regression for Strong Ground Motion Parameters. Bulletin of the Seismological Society of America, 90(6B), S53-S64. doi: 10.1785/0119980079. SCEC Contribution 545

Anderson, J. G., Brune, J. N., Anooshehpoor, A., & Ni, S. (2000). New Ground Motion Data and Concepts in Seismic Hazard Analysis. Current Science, 79(9), 1278-1290. SCEC Contribution 532