Document Type

Article

Publication Date

1-1-2011

Comments

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.The definitive version of this article may be found at http://dx.doi.org/10.1109/DEXA.2011.124.

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