Assoufid, L.Metrology of a mirror at the Advanced Photon Source : comparison between optical and x-ray measurements.,
article,
October 14, 1998;
Illinois.
(digital.library.unt.edu/ark:/67531/metadc620175/m1/3/:
accessed April 25, 2018),
University of North Texas Libraries, Digital Library, digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.