Waudby-Smith, Peter, Antrix Joshi, Christopher Sooriyakumaran, Christoph Gabriel, and Martin Grabenstein. 2022. “Using a Passive Feedback Connection to Control Low-Frequency Pressure Fluctuations in a Wind Tunnel”. Canadian Acoustics 50 (1). https://jcaa.caa-aca.ca/index.php/jcaa/article/view/3455.