C. V. Abud and Caldas, I. L., “Secondary nontwist phenomena in area-preserving maps”, Chaos: An Interdisciplinary Journal of Nonlinear Science, vol. 22, no. 3, p. 033142, 2012.

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I. L. Caldas, Viana, R. L., Abud, C. V., da Fonseca, J. D., Guimarães-Filho, Z. O., Kroetz, T., Marcus, F. A., Schelin, A. B., Szezech, J. D., Toufen, D. L., Benkadda, S., Lopes, S. R., Morrison, P. J., Roberto, M., Gentle, K. W., Kuznetsov, Y. K., and Nascimento, I. C., “Shearless transport barriers in magnetically confined plasmas”, Plasma Physics and Controlled Fusion, vol. 54, no. 12, p. 124035, 2012.

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C. V. Abud and Caldas, I. L., “On Slater’s criterion for the breakup of invariant curves”, Physica D: Nonlinear Phenomena, vol. 308, pp. 34 - 39, 2015.

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