Model-aided diagnosis: an inexpensive combination of model-based and case-based condition assessment. - Michael Stanek; Manfred Morari; Klaus Fröhlich (IEEE Trans. Syst. Man Cybern. Syst., 2001)

Multiple-Energy Carriers: Modeling of Production, Delivery, and Consumption. - Thilo Krause; Göran Andersson; Klaus Fröhlich; Alfredo Vaccaro (Proc. IEEE, 2011)