1. Planetary Defense in National Space Documents;Lenkavska,2021
2. Conceptualizing the asteroid threat and searching for a balanced answer between effectiveness and desirability;Schmidt,2019
3. Sovereignty and the UFO;Wendt;Polit. Theor.,2008
4. National Near-Earth Object Preparedness Strategy and Action Plan;White House,2016
5. The emergence of cooperation: national epistemic communities and the international evolution of the idea of nuclear arms control;Adler;Int. Organ.,1992