1. Y. Dokshitzer, Philos. Trans. R. Soc. London A 359, 309 (2001)
2. V. Barone, E. Predazzi, High-Energy Particle Diffraction (Spring-Verlag, Berlin, 2002). E. Predazzi, in International Workshop on Hadron Physics 98, Florianópolis, 1998, edited by E. Ferreira, F.F.S. Cruz, S.S. Avancini (World Scientific, Singapore, 1999) p. 80
3. A. Martin, in Proceedings of the VIIIth Blois Workshop-International Conference on Elastic and Diffractive Scattering, Protvino, 1999, edited by V.A. Petrov, A.V. Prokudin (World Scientific, Singapore, 2000) p. 121
4. G. Matthiae, Rep. Prog. Phys. 57, 743 (1994)
5. P. Valin, Phys. Rep. 203, 233 (1991)