(en) Heather Rock Woods, Placed under X-ray gaze, Archimedes manuscript yields secrets lost to time. Stanford University (19 mei 2005). Gearchiveerd op 10 september 2020. Geraadpleegd op 7 december 2020. "A synchrotron X-ray beam at the Department of Energy facility illuminated an obscured work—erased, written over and even painted over—of ancient mathematical genius Archimedes, born 287 B.C. in Sicily."
(en) Heather Rock Woods, Placed under X-ray gaze, Archimedes manuscript yields secrets lost to time. Stanford University (19 mei 2005). Gearchiveerd op 10 september 2020. Geraadpleegd op 7 december 2020. "A synchrotron X-ray beam at the Department of Energy facility illuminated an obscured work—erased, written over and even painted over—of ancient mathematical genius Archimedes, born 287 B.C. in Sicily."
(en) Heather Rock Woods, Press Release: Archimedes Manuscript Yields Secrets Under X-Ray Gaze. SLAC National Accelerator Laboratory, Menlo Park, CA (18 mei 2005). Gearchiveerd op 24 oktober 2020. "A synchrotron X-ray beam at the Department of Energy facility illuminated an obscured work—erased, written over and even painted over—of ancient mathematical genius Archimedes, born 287 B.C. in Sicily."
