1. Classical Network Theory;Belevitch,1968
2. Digital filters related to classical filter networks;Fettweis;AEÜ International Journal of Electronics and Communications,1971
3. Wave digital filters: theory and practice;Fettweis;Proceedings of the IEEE,1986
4. Fettweis, A., 2005–2007. Numerische Integration nach dem Wellendigitalprinzip, Vorlesung, Ruhr-Universität Bochum.
5. Robust Numerical Integration Using Wave-Digital Concepts, Multidimensional Systems and Signal Processing, vol. 17;Fettweis,2006