1. Horlock JH. Cogeneration-combined heat and power (CHP), Thermodynamics and economics. Oxford: Pergamon Press, 1987
2. Pálsson ÓP. Stochastic modeling, control and optimization of district heating systems. PhD Thesis. Technical University of Denmark, 1993
3. Zhao H. Analysis, modelling and operational optimization of district heating systems. PhD Thesis. Laboratory of Heating and Air Conditioning, Technical University of Denmark, February 1995
4. Benonysson A. Dynamic Modelling and operational optimization of district heating systems. PhD Thesis. Laboratory of Heating and Air Conditioning, Technical University of Denmark, September 1991
5. Hansson T. Driftsoptimering af fjernvarmeværker, Master's Thesis. Danmarks Tekniske Højskole, 1990, Laboratoriet for Varme-og Klimateknik