@article{nobre_moretzsonh_vilela_farias_almeida_2006,  title={Study of effects of interfaces in the propagation of the energy by optical modes in coaxial cylinders},  volume={36},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332006000600045},  DOI={10.1590/S0103-97332006000600045},  number={3b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Nobre, Eloneid Felipe and Moretzsonh, Ricardo Sávio Teixeira and Vilela, Rivelino Cunha and Farias, G.A. and Almeida, N.S.},  year={2006},  month={Sep},  pages={967–970} }