1. Blackburn, H. M., Mansour, N. N., and Cantwell, B. J., Topology of fine-scale motions in turbulent channel flow, Journal of Fluid Mechanics, Vol. 310 (1996), pp.269-292.
2. Chong, M. S., Perry, A. E., and Cantwell, B. J., A general classification of three-dimensional flow fields, Physics of Fluids, Vol. A2, No. 5 (1990), pp.765-777.
3. Hunt, J. C. R., Wray, A. A., and Moin, P., Eddies, streams, and convergence zones in turbulent flows, Center for Turbulence Research CTR-S88 (1988), pp.193-208.
4. Jeong, J., and Hussain, F., On the identification of a vortex, Journal of Fluid Mechanics, Vol. 285 (1995), pp.69-94.
5. Jiménez, J., Wray, A. A., Saffman, P. G., and Rogallo, R. S., The structure of intense vorticity in isotropic turbulence, Journal of Fluid Mechanics, Vol. 255 (1993), pp.65-90.