@article{article99bec99b,
title   = {Transport Barriers in Symplectic Maps},
author = {Viana, Ricardo and Caldas, Iberê Luiz and Szezech Jr., J. D. and Batista, A. M. and Abud, C. V. and Schelin, A. B. and Mugnaine, M. and Santos, M. S. and Leal, B. B. and Bartoloni, B. and Mathias, A. C. and Gomes, J. V. and Morrison, P. J.},
year = {2021},
doi = {10.1007/s13538-021-00894-8},
journal   = {Brazilian Journal of Physics}
}