@inbook {998, title = {Audio-Podcasts f{\"u}r Lehre und Forschung - Mathematik m{\"u}ndlich darstellen als Herausforderung}, booktitle = {Festschrift f{\"u}r Rose Vogel}, year = {2020}, pages = {217-227}, publisher = {Waxmann}, organization = {Waxmann}, address = {M{\"u}nster}, author = {Schreiber, Christof}, editor = {Vogler, Anna and Huth, Melanie and Fetzer, Marei and Beck, Melanie} }