Jones, J.; Bromberek, D. & Kang, Y. Mechanical design upgrade of the APS storage ring rf cavity tuner, article, August 1, 1997; (https://digital.library.unt.edu/ark:/67531/metadc699025/m1/1/: accessed March 23, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .