Yegian, M.K.; Ghahraman; Gazetas, G.; Dakoulas, P.; Makris, N. (April 1995). “The Northridge Earthquake of 1994: Ground Motions and Geotechnical Aspects”(PDF). 《Third International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics》. Northeastern University College of Engineering. 1384쪽. 2021년 11월 10일에 원본 문서(PDF)에서 보존된 문서. 2021년 4월 7일에 확인함.
Yegian, M.K.; Ghahraman; Gazetas, G.; Dakoulas, P.; Makris, N. (April 1995). “The Northridge Earthquake of 1994: Ground Motions and Geotechnical Aspects”(PDF). 《Third International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics》. Northeastern University College of Engineering. 1384쪽. 2021년 11월 10일에 원본 문서(PDF)에서 보존된 문서. 2021년 4월 7일에 확인함.