The Directorate General for Research of the European Parliament and the author are
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is included, together with the STOA front page, this statement, the publication data and
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way; (4) the European Parliament and the author are acknowledged; (5) it is clear in any
re-publication that this report does not necessarily represent the views of the European
Parliament. It is a working document of the Scientific and Technological Options
Assessment Panel of the European Parliament.
Further information or other reports on the same topic may be obtained from the European
Parliament, Luxembourg
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