1 = Yang, Xiaoping, Robert North, and Carl Romney, Aug. 2000, "CMR Nuclear Explosion Database (Revision 3)," on line, SMDC Monitoring Research [http://www.rdss.info/database/nucex/report/explosion.pdf].
2 = Sublette, Carey, Nuclear Weapon Archives, on line [http://nuclearweaponarchive.org/India/IndiaRealYields.html].
3 = Sublette, Carey, Nuclear Weapon Archives, on line [http://nuclearweaponarchive.org/India/IndiaShakti.html].
4 = Sublette, Carey, Nuclear Weapon Archives, on line [http://nuclearweaponarchive.org/Pakistan/PakTests.html].
5 = on line [http://www.rediff.com/news/1998/jun/30bomb3.htm].
6 = Albright, Bulletin of the Atomic Scientists, on line [http://www.thebulletin.org/article.php?art_ofn=ja98albright].
7 = Norris, Bulletin of the Atomic Scientists, on line [http://www.thebulletin.org/article_nn.php?art_ofn=nd98norris].
8 = Sublette, Carey, Nuclear Weapon Archives, on line [http://nuclearweaponarchive.org/Safrica/Vela.html].
9 = USGS, 12 Jan. 2009, "Magnitude 4.3--North Korea," on line, USGS Earthquake Hazards Program [http://earthquake.usgs.gov/eqcenter/eqinthenews/2006/ustqab/].
10 = USGS, 26 May 2009, "Magnitude 4.7--North Korea," on line, USGS Earthquake Hazards Program [http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2009hbaf.php].
11 = Kalinowski, Martin, 25 May 2009, "Second nuclear test conducted by North Korea on 25 May 2009," on line at Arms Control Wonk [http://www.armscontrolwonk.com/file_download/177/Kalinowski.pdf].