1. J. Vauvert, Chief Technical advisor to project: energy efficiency and conservation in the building sector, Botswana, Danish Energy Management A/S (verbal discussions of energy audits results), 2007.
2. F. Pedersen, A method for optimizing the performance of buildings, Ph.D. Thesis, Technical University of Denmark, October 2006, pp. 12, 13, 27, 35, 55.
3. T.R. Nielsen, Optimization of buildings with respect to energy and indoor environment, Ph.D. Thesis, Technical University of Denmark, September 2002, pp. 23, 32, 57, 90–95, 108, ISBN: 87-7877-094-7.
4. S. Citherlet, Towards the holistic assessment of building performance based on an integrated simulation approach, Ph.D. Thesis, Swiss Federal Institute of Technology, 2001, pp. 7.
5. C.A. Morbitzer, Towards the integration of simulation into the building design process, Ph.D. Thesis, University of Strathclyde, January 2003, pp. 14, 36, 66, 117, 187, 195.