@incollection{Lenk, author = {Lenk, Friedrich}, title = {Kapitel "Modulation" und "Multiplex"}, series = {Taschenbuch der Nachrichtentechnik}, booktitle = {Taschenbuch der Nachrichtentechnik}, editor = {Frohberg, Wolfgang}, publisher = {Fachbuchverlag Leipzig im Carl Hanser Verlag}, address = {M{\"u}nchen}, isbn = {3-446-41602-1}, pages = {108 -- 130}, language = {de} }