1. A. Pfahl, F Gross, P. Liedke, J. Hertel, J. Rheinländer, S. Mehta, J. F. Vásquez-Arango, S. Giuliano, R. Buck, “Reduced to Minimum Cost: Lay-Down Heliostat with Monolithic Mirror-Panel and Closed Loop Control”, SolarPACES 2017 conference, Santiago de Chile.
2. Precise low cost chain gears for heliostats
3. O. Siegmeier, et al. “Facette für einen Heliostat in Sandwich-Bauweise und Verfahren zum Herstellen einer Facette”, patent pending, 2017.
4. S. Ulmer, “Influences of Cost Reduction Measures on the Beam Quality of a Large-Area Heliostat”, Diploma thesis, 1998, IER, University Stuttgart, Stuttgart, Germany.
5. A. Nelson et al., “Understanding Soil Adhesion in Concentrating Solar Power Plants: A Novel Analysis of Soil Characteristics”, SolarPACES 2011 conference, Granada, Spain.