Spatially direct radiative recombinations observed in multiple 'DELTA'-doped'GA''AS' layers - Levine, Alexandre; Silva, Euzi Conceição Fernandes da; Scolfaro, L M R; Beliaev, D; Quivy, Alain André; Enderlein, R; Leite, J. R. (Encontro Nacional de Fisica da Materia Condensada, 1996)