1. Davis, F. K.: Ross Heater and Mfg. Co. Bull. 350, 72 (1931)
2. Bosnjakovic, F.; Vilicic, M.; Slipcevic,B.: Einheitliche Berechnung von Rekuperatoren. VDI-Forschungsheft 432 (1951)
3. Heat Exchanger Design Handbook. Vol. 1 Heat Exchanger Theory. Düsseldorf: VDI-Verlag 1986
4. Mueller, A. C.: New charts for true mean temperature difference in heat exchangers. AIChE Paper No. 10, 9th Nat. Heat Transfer Conf. Seattle 1967
5. Handbook of Heat Transfer Applications, 2. Aufl. New York: McGraw-Hill 1985