DeLay, S., S. Hiscock, T. Koopmans, S. Lenser, E. Rizkalla, and D. Tulk. “The Effects of Music Technology on Hearing: A Case Study of St. John’s Bars”. Canadian Acoustics, vol. 19, no. 4, Sept. 1991, pp. 77-78, https://jcaa.caa-aca.ca/index.php/jcaa/article/view/677.