1. Architectural Institute of Japan, 2005. Report on energy consumption of houses and measures of global warming in the year 2004.
2. Biwako Bank HP, 〈http://www.biwakobank.co.jp/index2.htm〉.
3. Building Stock Statistics Study Team, 2002. Estimation of building stock.
4. Central Information Centre of City Planning, 2002. 2002 Nation-wide city person trip survey (in Japanese).
5. Climate Alliance, 2005. Climate Alliance 2004/2005 annual report. Martin Muler Offsetdruck, Frankfurt.