1. contribution presented at the workshop on Polarization at LEP;Diambrini-Palazzi,1987
2. G. De Zorzi and G. Diambrini Palazzi, Letter of intent LEPC 88-7/1 8, and subsequent addenda: C. Bini et al., CERN/LEPC 89-5 (22-2-89) and CERN/LEPC 89-12 (1-6-89)
3. see also: M. Chen, G. Coignet, G. De Zorzi, G. Diambrini Palazzi and A. Di Domenico, CERN 88-06, vol. 2, p. 89.
4. Luminosity measurement at Adone by single and double bremsstrahlung
5. Luminosity measurement with the MD-1 detector at VEPP-4