1. The HERMES Collab: ”Hadron formation in deepinrelastic scattering”, Eur. Phys. J. C 20, 479 (2001)
2. 1. B. Kopeliovich, J. Nemchik, and E. Predazzi: Workshop on Future Physics at HERA, Hamburg, Germany, 30-31 May 1996. In Future physics at HERA 1038-1042, Amsterdam NIKHEF-NIKHEF-96-026 (96/09,rec.Oct.), 14-18
3. 2. nucl-th/9607036 B. Kopeliovich, J. Nemchik, and E. Predazzi, in Proceedings of the ELFE Summer School on Confinement Physics, edited by S.D. Bass and P.A.M. Guichon: Editions Frontieres, 1995, p. 391, Gif-sur-Yvette (hep-ph/9511214)
4. C. Ciofi degli Atti, L.P. Kaptari, and S. Scopetta: Eur. Phys. J. A 5, 191 (1999)
5. C. Ciofi degli Atti and B.Z. Kopeliovich: Eur. Phys. J. A 17, 133 (2003)