Zane Stein's "Chiron and Friends" pages
http://www.zanestein.com/chiron_a.htm

Francesco Schiavinotto's "AstroGeoData"
http://www.astrogeodata.it/index.htm

Robert von Heeren's "Centaur Research Project"
www.centaurresearchproject.de/crp.htm

Jonathan Dunn's site
http://megadelfi.com/~jonathan/

Gennady Maslov's site:
http://www.maslov.aaanet.ru/engarticle.shtml

Denis Kutalyov's site:
astrologic.ru/english/index.htm

Isabella Orsini's site (in Italian)
http://utenti.lycos.it/cleodoro/

Aneshvarii's "Astrologica" on asteroids (in Italian)
http://www.aneshvarii.eu/cleo/Astrologica/home_aste.htm