@Article{npg-9-237-2002,
AUTHOR = {Ide, K. and Small, D. and Wiggins, S.},
TITLE = {Distinguished hyperbolic trajectories in time-dependent fluid flows: analytical and computational approach for velocity fields defined as data sets},
JOURNAL = {Nonlinear Processes  in Geophysics},
VOLUME = {9},
YEAR = {2002},
NUMBER = {3/4},
PAGES = {237--263},
URL = {http://www.nonlin-processes-geophys.net/9/237/2002/},
DOI = {10.5194/npg-9-237-2002}
}