@article{articleafaa4b5a,
title   = {Shearless bifurcation on symplectic maps of magnetic field lines in tokamaks with reversed current},
author = {Bartoloni, B. and Schelin, A. B. and Caldas, Iberê Luiz},
year = {2016},
doi = {10.1016/j.physleta.2016.05.029},
journal   = {Physics Letters A}
}