@misc{misc9ff610ef, title = {Brazilian Journal of Physics}, author = {Oliveira, Luiz Nunes de and Coutinho, Francisco Antônio Bezerra and Galvão, Ricardo Magnus Osório and Vanzella, Daniel Augusto Turolla and Burdman, Gustavo Alberto and Nussenzveig, Paulo Alberto}, year = {2013}, publisher = {Springer} }