R. Tesoriero, J.A. Gallud, M. Lozano, V.M.R. Penichet.: Using Active and Passive RFID Technology to Support Indoor Location-Aware Systems. IEEE Transactions on Consumer Electronics, Volume 54, Number 2. ISSN: 0098-3063, pp. 578-583, May 2008.

ACM: http://dl.acm.org/citation.cfm?id=2279647