Document is current

CROSSCHECK

: This document is CrossCheck deposited

COPYRIGHT AND LICENSING

: The PCCP Owner Societies have an exclusive publication licence for this journal

OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0)

PUBLICATION HISTORY

: Received 29 July 2014; Accepted 5 August 2014; Accepted Manuscript published 5 August 2014; Advance Article published 11 August 2014; Version of Record published 20 August 2014