The effect of confinement on the temperature dependence of the excitonic transition energy in GaAs/`Al IND.X´`Ga IND.1-X´As quantum wells - Silva, M A T da; Morais, R R O; Dias, I F L; Lourenço, S A; Duarte, J L; Laureto, E; Quivy, Alain André; Silva, Euzi Conceição Fernandes da (Journal of Physics-Condensed Matter, 2008)