Investigation of Strain Relaxation Mechanisms in InGaAs/GaAs Single Layer Films Filippo Romanato, Antonio Vittorio Drigo, Laura Francesio, Paolo Franzosi, Laura Lazzarini, Giancarlo Salviati, Massimo Mazzer, Maria Rita Bruni and Maria Grazia Simeone Microsc. Microanal. Microstruct., 6 5-6 (1995) 491-498 DOI: 10.1051/mmm:1995140