@conference{steinke1990the, title = {The Delta Stereophony System (DSS) in the City Hall of Stade and in the Open-Air Theater Trachselwald}, author = {Steinke, Gerhard and Fels, Peter and Hoeg, Wolfgang and Sellin, Ulrich and Dudda, Jürgen}, booktitle = {Audio Engineering Society Convention 88}, month = {Mar}, year = {1990}, url = {https://www.aes.org/e-lib/browse.cfm?elib=5773} }