Lumpkin, A.; Yang, B.; Chung, Y.; Dejus, R.; Voykov, G. & Dattoli, G. Preliminary calculations on the determination of APS particle-beam parameters based on undulator radiation, article, July 1, 1995; (https://digital.library.unt.edu/ark:/67531/metadc785471/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .