1. Baer, Stephen, 1984. Thermal control system for solar collector – US4528976.
2. Regelungstechnische Untersuchungen zur Vermeidung von Stillstanddssituationen bei großen solarthermischen Anlagen;Becker,2006
3. Design of a Variable-Conductance Vacuum Insulation;Benson,1994
4. New Approaches for Cooling Photovoltaic/Thermal (PV/T) Systems;Bouzoukas,2008
5. Boyle, Richard, Williams, Christophe, Cottington, Norman, 2012. Hybrid solar collector – US 20120318328 A1. United States Patent.