@incollection{Harzer2020,
  author    = {Friedmann Harzer},
  title     = {Echo},
  booktitle = {Metzler-Lexikon literarischer Symbole},
  editor    = {G{\"u}nter Butzer and Joachim Jacob},
  isbn      = {978-3-476-02131-1},
  year      = {2020},
}