[13] Shunsuke Otani, Another problem: Seismic protection of existing buildings, in: International Symposium on Earthquake Safe Housing, Proceedings, National Graduate Institute for Policy Studies (GRIPS), Building Research Institute (BRI) and United Nations Centre for Regional Development (UNCRD), 28 Nov., 2008.
[14]The Ministry of Land, Infrastructure, Transport and Tourism (MLIT), Japan, Promotion of assessment and retrofitting, power-point presentation, July 2009