Brazilian Journal of Physics
Brazilian Journal of Physics > 2019 > 49 > 2 > 161-167
Brazilian Journal of Physics > 2019 > 49 > 2 > 215-220
Brazilian Journal of Physics > 2019 > 49 > 4 > 571-582
Brazilian Journal of Physics > 2019 > 49 > 2 > 161-167
Brazilian Journal of Physics > 2019 > 49 > 2 > 215-220
Brazilian Journal of Physics > 2019 > 49 > 4 > 571-582