1. Zavoico A. Solar Power Tower Design Basis Document, Revision 0. Albuquerque: Nexant; 2001. Report No.: SAND2001-2100.
2. Schwarzbach J, Kroyzer G, inventors; Heliostat calibration. United States patent 20100139644 A1. 2010 Jun 10.
3. Reznik D, Azarchs A, Csaszar A, Hartshorn M, inventors; Calibration and tracking control of heliostats in a central tower receiver solar power plant. United States patent 8192027 B2. 2012 Jun 5.
4. Zavodny M, Reznik D, Forte M, inventors; Camera-based heliostat calibration with artificial light sources. United States patent 7994459 B2. 2011 Aug 9.