1IEA. 30 Years Of energy use in IEA countries. Paris: International Energy Agency, 2004.
2United Nations Human Settlements Programme. Enhancing urban safety and security: Global report on human settlements 2007: Earthscan, 2007.
3Park H-C, Heo E. The direct and indirect household energy requirements in the Republic of Korea from 1980 to 2000 An input-output analysis. Energy Policy, 2007, 35 : 2839-2851.
4Abrahamse W, Steg L, Vlek C, Rothengatter T. A review of intervention studies aimed at household energy conservation. Journal of Environmental Psychology, 2005, 25 : 273-291.
5Bradbury M Peterson, M N Liu J. Long-term dynamics of household size and their environmental implications. Population and Environment.DOI: 10.1007/ sl 1111-014-0203-6, 2014.
6Gu, Danan, Qiushi Feng~ Zhenglian Wang~ Yi Zeng. Recommendation to consider the crucial impacts of trends in smaller household size on sustainable development goals. UNITED NATIONS Sustainable Development Knowledge Platform. Scientific briefs, https://sustainabledevelopment. un.org/topics/science/crowdsourcedbriefs, 2015.
