Gillespie, Douglas. “Detection and Classification of Right Whale Calls Using an ’edge’ Detector Operating on a Smoothed Spectrogram”. Canadian Acoustics 32, no. 2 (June 1, 2004): 39–47. Accessed April 18, 2024. https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1586.