1. LEP energy working group;Assmann;Eur. Phys. J. C,1999
2. R. Assmann, et al. (LEP Energy Working Group), Calibration of centre-of-mass energies at LEP 2 for a precise measurement of the W boson mass, CERN-PH-EP-2004-032, CERN-AB-2004-030 OP, submitted to Eur. Phys. J. C.
3. Tesla Engineering Ltd, Water Lane, Storrington, West Sussex, RH20 3EA, UK, http://www.tesla.co.uk
4. Metrolab Instruments S.A., Geneva, Switzerland, http://www.metrolab.com
5. Heidenhain Corporation, http://www.heidenhain.com