Abstract
The full text of this article is available in the PDF provided.
Published 7 March 2011 •
Published under licence by IOP Publishing Ltd
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Citation T Accadia 2011 Class. Quantum Grav. 28 079501DOI 10.1088/0264-9381/28/7/079501
This is a correction for 2011 Class. Quantum Grav. 28 025005
The full text of this article is available in the PDF provided.