W. HE, J. FENG, L. GAO, Z. ZHANG, and H. LU, “Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat”, archacoust, vol. 42, no. 3, pp. 395–399, Jul. 2017, doi: 10.1515/aoa-2017-0041.