C. G. L. Martins, Roberto, M., Caldas, I. L., and R. de Carvalho, E., “Magnetic Field Line Escape: Comparison with Mean Free Path”, Journal of Physics: Conference Series, vol. 285, p. 012012, 2011.

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C. G. L. Martins, R. de Carvalho, E., Caldas, I. L., and Roberto, M., “Plasma confinement in tokamaks with robust torus”, Physica A: Statistical Mechanics and its Applications, vol. 390, no. 5, pp. 957 - 962, 2011.

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C. G. L. Martins, R. de Carvalho, E., Caldas, I. L., and Roberto, M., “Effect of robust torus on the dynamical transport”, Journal of Physics: Conference Series, vol. 246, p. 012005, 2010.

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T. Kroetz, Roberto, M., Caldas, I. L., Viana, R. L., Morrison, P. J., and Abbamonte, P., “Integrable maps with non-trivial topology: application to divertor configurations”, Nuclear Fusion, vol. 50, no. 3, p. 034003, 2010.

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C. G. L. Martins, R. de Carvalho, E., Caldas, I. L., and Roberto, M., “The non-twist standard map with robust tori”, Journal of Physics A: Mathematical and Theoretical, vol. 43, no. 17, p. 175501, 2010.

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T. Kroetz, Marcus, F. A., Roberto, M., Caldas, I. L., Viana, R. L., and da Silva, E. C., “Transport control in fusion plasmas by changing electric and magnetic field spatial profiles”, Computer Physics Communications, vol. 180, no. 4, pp. 642 - 650, 2009.

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F. A. Marcus, Kroetz, T., Roberto, M., Caldas, I. L., da Silva, E. C., Viana, R. L., and Guimarães-Filho, Z. O., “Chaotic transport in reversed shear tokamaks”, Nuclear Fusion, vol. 48, no. 2, p. 024018, 2008.

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T. Kroetz, Roberto, M., da Silva, E. C., Caldas, I. L., and Viana, R. L., “Escape patterns of chaotic magnetic field lines in a tokamak with reversed magnetic shear and an ergodic limiter”, Physics of Plasmas, vol. 15, no. 9, p. 092310, 2008.

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E. C. da Silva, Roberto, M., Caldas, I. L., and Viana, R. L., “Effects of the resonant modes on the magnetic footprint patterns in a tokamak wall”, Physics of Plasmas, vol. 13, no. 5, p. 052511, 2006.

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E. C. da Silva, Roberto, M., PORTELA, J. S. E., Caldas, I. L., and Viana, R. L., “Escaping and transport barrier due to ergodic magnetic limiters in tokamaks with reversed magnetic shear”, Nuclear Fusion, vol. 46, no. 4, pp. S192 - S198, 2006.

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M. Roberto, da Silva, E. C., Caldas, I. L., and Viana, R. L., “Derivation of an analytical area-preserving map to describe transport barriers in tokamaks”, Journal of Physics: Conference Series, vol. 7, pp. 163 - 173, 2005.

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M. Roberto, da Silva, E. C., Caldas, I. L., and Viana, R. L., “Magnetic trapping caused by resonant perturbations in tokamaks with reversed magnetic shear”, Physics of Plasmas, vol. 11, no. 1, pp. 214 - 225, 2004.

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M. Roberto, da Silva, E. C., Caldas, I. L., and Viana, R. L., “Non-twist field line mappings for tokamaks with reversed magnetic shear”, Brazilian Journal of Physics, vol. 34, no. 4b, pp. 1759 - 1765, 2004.

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M. Roberto, da Silva, E. C., Caldas, I. L., and Viana, R. L., “Transport barrier created by dimerized islands”, Physica A: Statistical Mechanics and its Applications, vol. 342, no. 1-2, pp. 363 - 369, 2004.

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