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C. Wolff, J. Strumberg, M. Knirr, C. Fortenbacher, W. Schier, J. Tekampe, I. Först, and C. Hensen, “Smart Biogas Power Plants,” Proceedings of the Dortmund International Research Conference Dortmund 2015. Fachhochschule Dortmund, Dortmund, pp. 131–140, 2015.