@article{rijk1991speech, title = {Speech Intelligibility in Some German Sports Stadiums}, author = {Rijk, Kees and Breuer, Franz and Peutz, Victor M.}, journal = {J. Audio Eng. Soc}, volume = {39}, number = {1/2}, pages = {39--46}, year = {1991}, url = {https://www.aes.org/e-lib/browse.cfm?elib=5997} }