1. A.B. Kaidalov, K.A. Ter-Martirosyan: Sov. J. Nucl. Phys. 39 (1984) 979; 40 (1984) 135; A.B. Kaidalov, L.A. Ponomarev, K.A. Ter-Martirosyan: Yad. Fiz. 44 (1986) 722; Sov. J. Nucl. Phys. 44 (1986) 468; A. Capella, A. Staar, J. Tran Than Van: Phys. Rev. D32 (1985) 2933; A. Capella, J. Tran Thanh Van: Z. Phys. C10 (1981) 249; Phys. Lett. B93 (1980) 146; B114 (1982) 450; Z. Phys. C23 (1984) 165
2. P.V. Landshoff: CERN-TH. 6277/91, Talk at LP-HEP'91 Conference, Geneva 1991; A. Donnachie, P.V. Landshoff: Nucl. Phys. B244 (1984) 322; B267 (1986) 690; Phys. Lett. B296 (1992) 227
3. L.N. Lipatov: Zh. Eksp. Teor. Fiz. 90 (1986);
4. Sov. Phys. JETP 63 (1986) 904; E.A. Kuraev, L.N. Lipatov, V.S. Fadin: Sov. Phys. JETP45 (1977) 199
5. E.M. Levin, M.G. Ryskin: Phys. Rep. C189 (1990) 267