1. Dependence of the VUV-FEL performance at the TESLA Test Facility on magnetic field errors
2. NTIS Doc. No. DE98059292, LCLS Design Group, LCLS Design Report, April 1998, (Copies may be ordered from the National Technical Information Service) Springfield, VA 22162.
3. S.V. Milton, et al., Phys. Rev. Lett., submitted for publication.
4. N.A. Vinokurov, A.N. Skrinsky, Preprint INP 77-59, Novosibirsk, 1977.
5. The first experiments with an optical klystron installed on the VEPP-3 storage ring