1. EECA. Summary of 9 Sawmill Energy Audits. New Zealand Energy Efficiency and Conservation Authority, research report, April 2005. http://www.eecabusiness.govt.nz/node/18601 (accessed June 2, 2013).
2. Efficient Energy Recovery with Wood Drying Heat Pumps
3. Energetic and Ecological Aspects of Softwood Drying with High-Temperature Heat Pumps
4. Bannister, P.; Carrington, G.; Chen, G. Heat pump dehumidifier drying technology: Status, potential and prospects. InProceedings 7th International Energy Agency Conference on Heat Pumping Technology, Beijing, China, May 19–22, 2002; vol. 1, 219–230.