"Quantum Chromo Dynamics"

http://www.geocities.com/CapeCanaveral/
Launchpad/7045/qedteoria.html

http://www.etrurianet.it/vero/particelle.htm

http://cern.web.cern.ch/CERN/
CERN  - Ginevra

http://www.fnal.gov/
FERMILAB - Chicago

http://www.infn.it/
ISTITUTO NAZIONALE DI FISICA NUCLEARE

http://axppv0.pv.infn.it/~dfntwww/ricerca/part-97.html

http://webscuola.tin.it/risorse/quark/opera/protoni.htm

http://micrys.net/homepages/ero/qcd/

http://summa.physik.hu-berlin.de/tsd/group2.html