Interband magneto-optical transitions in a layer of semiconductor nano-rings O. Voskoboynikov, C. M. J. Wijers, J. L. Liu and C. P. Lee Europhys. Lett., 70 5 (2005) 656-662 Published online: 29 April 2005 DOI: 10.1209/epl/i2004-10516-7