Durgunoğlu, H.T., Chincinelli, M., İkiz, S., Ermen, C., Harley, T., and Catalbas, F., “Soil Improvement with Jet-Grou Columns: A Case Stedy From the 1999 Kocaeli Earthquake Mitigation”, Proceedings of Fifty International Confernece on Case histroies in Geotechrical Engineering, 2004.