1. For details see B Barish, slides of the talk given at LCWS06: http://indico.cern.ch/contributionDisplay.py?contribId=12&sessionId=0&confId=568
2. See also: http://www.linearcollider.org/cms/?pid=1000014
3. R M Godbole, Raghava Verma, B N Chandrika and H R Madhusudana, Curr. Sci 91, 861 (2006)
4. More information on QuarkNet can be found at: http://quarknet.fnal.gov/
5. R-D Heuer et al, TESLA TDR-III: Physics at an e + e − linear collider, hep-ph/0106315