Brazilian Journal of Physics
Brazilian Journal of Physics > 2014 > 44 > 2-3 > 260-270
Brazilian Journal of Physics > 2014 > 44 > 6 > 824-831
Brazilian Journal of Physics > 2014 > 44 > 2-3 > 260-270
Brazilian Journal of Physics > 2014 > 44 > 6 > 824-831