Çetin, O., Youd, T.L., Seed, R.B., Bray, J.D., Stewart, J.P., Durgunoğlu, H.T., Lettis, W., Yılmaz, M.T., “Closure to "Liquefaction Induced Lateral Spreading at İzmit Bay During the Kocaeli (İzmit) Turkey Earthquake" by K. Önder Çetin, T. Leslie Youd, Raymond B. Seed, Jonathan D. Bray, Jonathan P. Stewart, H. Turan Durgunoğlu, W. Lettis, M. Tolga Yılmaz”, Journal of Geotechnical and Geoenvironmental Engineering, 132, 7, 956-959, 2006.