Brazilian Journal of Physics
Brazilian Journal of Physics > 2014 > 44 > 6 > 645-652
Brazilian Journal of Physics > 2015 > 45 > 2 > 234-237
Brazilian Journal of Physics > 2016 > 46 > 2 > 198-205
Brazilian Journal of Physics > 2014 > 44 > 6 > 645-652
Brazilian Journal of Physics > 2015 > 45 > 2 > 234-237
Brazilian Journal of Physics > 2016 > 46 > 2 > 198-205