Spiller, E. (2015). "X-Rays: Optical Elements". In Craig Hoffman; Ronald Driggers (eds.). Encyclopedia of Optical Engineering (2nd ed.). Taylor & Francis. doi:10.1081/E-EOE2. ISBN978-1-351-24718-4.
Wolter, H. (1952). "Verallgemeinerte Schwarzschildsche Spiegelsysteme streifender Reflexion als Optiken für Röntgenstrahlen". Annalen der Physik. 10 (4–5): 286–295. Bibcode:1952AnP...445..286W. doi:10.1002/andp.19524450410.
Pikuz, T. A.; Faenov, A. Ya.; Fraenkel, M.; Zigler, A.; Flora, F.; Bollanti, S.; Di Lazzaro, P.; Letardi, T.; Grilli, A.; Palladino, L.; Tomassetti, G.; Reale, A.; Reale, L.; Scafati, A.; Limongi, T.; Bonfigli, F.; Alainelli, L.; Sanchez del Rio, M. (2000). Using spherically bent crystals for obtaining high-resolution, large-field, monochromatic X-ray backlighting imaging for wide range of Bragg angles. 27th IEEE International Conference on Plasma Science. p. 183. doi:10.1109/PLASMA.2000.854969.
Wolter, H. (1952). "Verallgemeinerte Schwarzschildsche Spiegelsysteme streifender Reflexion als Optiken für Röntgenstrahlen". Annalen der Physik. 10 (4–5): 286–295. Bibcode:1952AnP...445..286W. doi:10.1002/andp.19524450410.
"Zone Plates". X-Ray Data Booklet. Center for X-ray Optics and Advanced Light Source. Lawrence Berkeley National Laboratory. Retrieved 13 January 2015.