1. PV – the story so far
2. Brandhorst H. M., Terrestrial solar cell calibration and measurement procedures. Proceedings of the Inter. Photovoltaic Solar Energy Conf., Luxemburg, 26–29 May 1977 (Reidel Publ. Co., Dordrecht-Boston, 1978)
3. Terrestrial Photovoltaic Measurement Procedures (Technical Memorandum 73702, NASA, Cleveland, Ohio, 1977)
4. Renewable energy: a response to climate change
5. Alam A. S., Dooley L. S., Poulton A. S., Energy efficient relay-assisted cellular network model using base station switching, IEEE Global Telecommunications (GLOBECOM 2012): 2nd International Workshop on Multicell Cooperation, 3–7 December 2012 (Anaheim (California), USA, 2012)