Kühn, A., Mittermaier, M. and Ziegler, F. (2007). Operational results of a 10 kW absorption chiller with focus on external and internal volume flow rates. Proc. of the 2nd International Conference Solar Air-Conditioning. Ostbayerisches Technologie-Transfer-Institut e.V..

Wagner E., S. A. S. P. K. O. Z. F. A. H. (2008). Nucleate boiling at single artificial cavities: Bubble dynamics and local temperature measurements. Proc. 6th Int. Conf. on Multiphase Flow

Albers, J., Kühn, A., Petersen, S. and Ziegler, F. (2008). Control of absorption chillers by insight : The characteristic equation.. Czasopismo Techniczne 2008 - Proc. of 18textsuperscriptth Int. Conf. on Process Engineering and Plant Design, 3–12.

Koeppen O., Z. F. A. H. B. M. (2008). Optical microsensors to study two-phase flow characteristics. Proc.1st European Conference on Microfluidics

Kühn, A., Petersen, S. and Ziegler, F. (2008). Nutzung von Niedertemperaturwärme zur Kälteerzeugung. TU International, 10–12.

Albers, J., Besana, F., Krause, M., Safarik, M., Sparber, W. and Witte, K. T. (2008). Absorption chiller modelling with TRNSYS - requirements and adaptation to the machine EAW Wegracal SE 15.. Proc. of Eurosun 2008 – Int. Conf. on Solar Heating, Cooling and Building

Kühn, A. and Ziegler, F. (2008). Betrieb einer Absorptionskälteanlage als Wärmepumpe. Tagungsband der Deutschen Kälte-Klima Tagung

Kühn, A., Corrales Ciganda, J. L. and Ziegler, F. (2008). Comparison of control strategies of solar absorption chillers. Proc. of the 1st International Conference on Solar Heating, Cooling and Buildings (Eurosun)

Kühn, A., Meyer, T. and Ziegler, F. (2008). Operational results of a 10 kW absorption chiller in heat pump mode. Proc. of the 9th International IEA Heat Pump Conference

Wittstadt, U., Jahnke, A., Schnabel, L., Sosnowski, M., Schmidt, F. P. and Ziegler, F. (2008). Test facility for small-scale adsorbers. International Sorption Heat Pump Conference

Albers, J. and Ziegler, F. (2008). Berücksichtigung von variablen externen Volumenströmen in charakteristischen Gleichungen für Absorptionskälteanlagen.. Tagungsband Deutsche Klima"=Kälte"=Tagung

Albers, J. and Ziegler, F. (2008). Optimierte Regelstrategie für Absorptionskälteanlagen mit Thermosyphon-Desorbern.. Tagungsband Deutsche Klima"=Kälte"=Tagung

Albers, J., Nurzia, G. and Ziegler, F. (2008). Simulation and experimental analysis of a solar driven absorption chiller with partially wetted evaporator.. Proc. of ASME Energy Sustainability

Kühn, V. C. A. and Ziegler, F. (2008). Absorptionskälteanlagen kleiner Leistung im Einsatz mit geothermischen Technologien - Einsatz im Kühl- und Wärmepumpenbetrieb. VDI-Berichte Nr. 2026. VDI Verlag GmbH, Düsseldorf, 189–198.

Albers, J. and Ziegler, F. (2008). Balancing the absorber and thermosyphon desorber capacity of a solar driven absorption chiller.. Proc. of Int. Sorption Heat Pump Conference