1. Korea Advanced Institute of Science and Technology (KAIST), 207-43 Cheongyangri-Dong, Dongdaemun-Gu, Seoul, Korea 130-012,
2. PhD Programme of KAIST and in the Korea Research Institute for Human Settlements (KRIHS), KRIHS, 1591-6, Gwanyang-Dong, Anyang-City, Kyunggi-Do, Korea 431-712,
3. Korea Research Institute for Human Settlements (KRIHS),