1. R. Kimari, Huoneistokohtainen lämmitysenergian mittaus ja laskutus, Kauppa-ja teollisuusministeriö, Energiaosasto, Helsinki, Tutkimuksia D, 202, 1994.
2. Technical equipment, a precondition for energy allocation: overview of available techniques;Műgge,1997
3. J. Pakanen, S. Karjalainen, An ARMAX-model approach for estimating static heat flows in buildings; A method for computerised energy allocation systems, Technical Research Centre of Finland, VTT, Espoo, Publications 457, 2002.
4. Typical faults of air-conditioning systems and fault detection by ARX model and extended Kalman filter;Yoshida,1996
5. On-line recursive estimation for load profile prediction;MacArthur,1989