1. G. Bauer, T. Broome, D. Filges, H. Jones, H. Lengeler, A. Letchford, G. Rees, H. Stechemesser, G. Thomae (Eds.), The European Spallation Source Study, Vol. III, The ESS Technical Study, Report ESS-96-53-M, November 1996.
2. B. Aminov, A. Gamp, H. Haebel, H. Heinrichs, H. Piel, J. Pouryamout, Th. Schilcher, D.L. Schrage, G. Schulz, S. Simrock, C.H. Rohde and R. Röth, Conceptual design of the superconducting high energy linear H−-accelerator for the future european spallation neutron source (ESS), ESS-96-60-L, December 1996.
3. W. Bräutigam, S. Martin, P.F. Meads, G. Schug, Y. Senichev, E. Zaplatine, Design considerations for a superconducting linac as an option for the ESS, PAC 99, New York, March 29–April 2, 1999, IEEE 99CH36366, p. 3549.
4. W. Bräutigam, S. Martin, E. Zaplatine, Design study for SC proton linac acceleratin cavities, PAC 99, New York, March 29–April 2, 1999, IEEE 99CH36366, p. 959.
5. U. Ratzinger, Highly efficient ion linacs, PAC 99, New York, March 29–April 2, 1999, Nucl. Instr. and Meth. B (2000) in press.