1. The global exploration roadmap;The International Space Exploration Coordination Group (ISECG),2013
2. Benefits stemming from space exploration;The International Space Exploration Coordination Group (ISECG),2013
3. Science-driven scenario for space exploration;The European Space Sciences Committee (ESSC),2007
4. International space station benefits to humanity;ISS Partnership,2012
5. A brief review of chemical and mineralogical resources on the Moon and likely initial ISRU applications;Anand;Planet Space Sci,2012