MITCHELL, R. S., A. STEPNOWSKI, J. DROBNIK, and D. R. GREEN. “Real Time Signal Processing Techniques in a Dual Beam Sonar System for Fish Stock Assessment”. Archives of Acoustics 13, no. 1-2 (June 30, 1988): 67–88. Accessed March 4, 2026. https://acoustics.ippt.gov.pl/index.php/aa/article/view/3062.