1. Cost-benefit analysis of the geothermal energy resources on the private and public respects;Ahn;The Korean Society for Geosystem Engineering,2005
2. Emission Factor of on-road Vehicle by Model Years;APRC,2002
3. CO2 Emission Reduction Effect of Seoul Air Quality Management Plan;Chae,2006
4. Intergrated Environmental Strategies;Chae,2007
5. Energy Efficiency Improvement of Urban Transport System and Mitigation of GHGs and Other Harmful Emissions: Case Study of Beijing and Hangzhou;ERI,2001