1. Proceedings of the 42nd Annual Conference of the Australian and New Zealand Solar Energy Society;Wenzl,2004
2. Proceedings of the 10th ELBC;Sauer,2006
3. R. Kaiser, Optimierung eines Batteriemanagementsystems zum Einsatz in photovoltaischen Stromversorgungssystemen [Optimisation of a battery management system for use in photovoltaic power supply systems], Dissertation, University of Ulm, Ulm, 2005.
4. D.U. Sauer, Optimierung des Einsatzes von Blei-Säure Akkumulatoren in Photovoltaik-Hybrid-Systemen unter spezieller Berücksichtigung der Batteriealterung [Optimisation of the use with lead-acid batteries in photovoltaic hybrid systems in special consideration of the battery aging], Dissertation, University of Ulm, Ulm, 2003.
5. Proceedings of the 2nd European PV-Hybrid and Mini-Grid Conference;Meyer,2003