2.2.2 spase://SMWG/Person/Luiz.Muniz.Barreto 2012-04-20T12:34:56.789 Luiz Muniz Barreto CNPq - Observatorio Nacional, Rio de Janeiro, Brazil

Observatorio Nacional, Rua General Bruce, 586, 20921-400, Rio de Janeiro, RJ, Brazil, Brazil

barreto@on.br