1. The Spatial and Temporal Variation of Haze and Its Relativity in the Beijing-Tianjin-Hebei Region.;Ma;Reg. Res. Dev.,2016
2. G. Zhi, “Rural Household Coal Use Survey, Emission Estimation and Policy Implications,” Res. Environ. Sci. vol. 8, 2016.
3. Hot air type low ambient temperature air source heat pump:A Clean and Efficient Heating Technology Suitable for Beijing Rural House;Ma;Construction Science and Technology,2016
4. Research Report on Annual Development of China 's Building Energy Efficiency;University,2016
5. J. Yi, “Suggestions on Realizing Low Temperature Air Source Heat Pump Hot Air Heating Technology to Achieve No Coalification in Rural Area of Beijing, Tianjin and Hebei,” National High-end think tank, 2016.