@misc{MEMOBASE_afz-003-IB_Becker_Audiovisuals-4, author = {Egon Becker}, title = {Le mur du son (Tonbildtraining, 2. Lektion, Teil B)}, howpublished = {https://memobase.ch/de/object/afz-003-IB_Becker_Audiovisuals-4}, year = {1973}, note = {}, key = {afz-003-IB_Becker_Audiovisuals-4}, }