1. Altaweel, Mark. “Open-source science in the cloud collaboration.” GIS Lounge. (2022). 〈https://www.gislounge.com/platform-for-analyzing-geospatial-data-in-the-cloud/#:~:text=Recently%2C%20NASA%20and%20the%20European,for%20understanding%20the%20Earth's%20environmentB978-0-12-409548-9.09278-2〉
2. Estimated carbon dioxide emissions from tropical deforestation improved by carbon-density maps;Baccini;Nature Climate Change,2012
3. Status and development of PEM Fuel Cell Technology;Barbir;International Journal of Energy Research,2008
4. Cost-benefit analysis of space exploration: Some ethical considerations;Baum;Space Policy,2009
5. The effects of chemical propulsion on the environment;Bennet;Acta Astronautica,1992