Raman scattering of Ge dot superlatticesA. Milekhin, N. P. Stepina, A. I. Yakimov, A. I. Nikiforov, S. Schulze and D. R.T. ZahnEur. Phys. J. B, 16 2 (2000) 355-359DOI: https://doi.org/10.1007/s100510070236