1. Wiggler and undulator magnets — A review
2. A synchrotron radiation source with arbitrarily adjustable elliptical polarization (summary);Kim,1983
3. K.J. Kim, Preprint LBL-16593; Nucl. Instr. and Meth. submitted for publication.
4. N.A. Vinokurov and A.N. Skrinsky, preprint INP 77-59, Novosibirsk (1977)