• Prof. Dr.-Ing. Stephan ten Brink, Lecture Notes “Communications III”, University of Stuttgart, 2020.

• Prof. Dr.-Ing. Stephan ten Brink, Vorlesungsskript “Übertragungstechnik I”, University of Stuttgart, 2020.

• John M. Cioffi, Stanford University, https://cioffi-group.stanford.edu/, ch03