Space Debris and Nuclear Power Sources: National Research for 2002
- Finland http://www.oosa.unvienna.org/sdnps/2002/finland.html
- Iran (Islamic Republic of) http://www.oosa.unvienna.org/sdnps/2002/iran.html
- Ukraine http://www.oosa.unvienna.org/sdnps/2002/ukraine.html
- United Kingdom of Great Britain and Northern Ireland http://www.oosa.unvienna.org/sdnps/2002/united_kingdom.html