© ACM, 2013. This is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version will be published in the Proceedings of the ACM 2013 - Leif - Document - PDFSEARCH.IO

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	© ACM, 2013. This is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version will be published in the Proceedings of the ACM 2013 Add to Reading List Document Date: 2012-11-16 09:40:27 Open Document File Size: 2,66 MB Share Result on Facebook

© ACM, 2013. This is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version will be published in the Proceedings of the ACM 2013 Add to Reading List