Flammang, B.E. & Lauder, G.V. & Troolin, D.R. & Strand, T. (2011)
Volumetric imaging of shark tail hydrodynamics reveals a three-dimensional dual-ring vortex wake structure.
Proceedings of the Royal Society of London, Series B, 278(1725), 3670–3678 DOI: 10.1098/rspb.2011.0489