[1]

Amy S Bower. A simple kinematic mechanism for mixing fluid parcels across a meandering jet. Journal of Physical Oceanography, 21(1):173–180, 1991.

[2]

Shawn C Shadden, Francois Lekien, and Jerrold E Marsden. Definition and properties of lagrangian coherent structures from finite-time lyapunov exponents in two-dimensional aperiodic flows. Physica D: Nonlinear Phenomena, 212(3):271–304, 2005.