1. Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies, opened for signature at London, Moscow and Washington on 27 January 1967, 610 UNTS 205, 18 UST 2410, TIAS 6347, 6 ILM 386 (entered into force on 10 October 1967) [OST].
2. Report of the Committee on the Peaceful Uses of Outer Space, UNCOPUS, 62 Sess., Supp No 20, UN Doc A/62/20,2007
3. 5 September 2018, UNOOSA, online http://www.unoosa.org/documents/pdf/spacelaw/sd/Space_Debris_Compendium_COPUOS_5_sep_2018.pdf.