Towards controllable optical response of GaN quantum dots in alumina C. Maurizio, G. Mattei, M. A. Garcia, E. Borsella, P. Mazzoldi, A. Quaranta and F. D'Acapito Eur. Phys. J. D, 25 1 (2003) 25-29 Published online: 24 April 2003 DOI: 10.1140/epjd/e2003-00081-1