Kegel, I., Metzger, T., Fratzl, P., Peisl, J., Lorke, A., Garcia, J., et al. (1999). Interdependence of strain and shape in self-assembled coherent InAs islands on GaAs. Europhysics Letters, 45(2), 222-227. doi:10.1209/epl/i1999-00150-y.