TY - RPRT TI - Variable-period undulators as synchrotron radiation sources. AU - G K Shenoy AU - J W Lewellen AU - Deming Shu AU - N A Vinokurov PY - 2003 DO - 10.1107/s0909049502023257 UR - https://pubmed.ncbi.nlm.nih.gov/12714749/ ID - 12714749 ER -