Document Type

Article

Publication Title

Research in Focus

Rights and Access Note

Rights assessment remains the responsibility of the researcher. No known restrictions on publication.

Publication Date

7-2007

Version

post-print (i.e. final draft post-refereeing with all author corrections and edits)

Creative Commons License

Creative Commons Attribution-Noncommercial-Share Alike 3.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

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Rights Statement

No Copyright - United States