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Use either the free text alone or combined with the advanced search - note that the search engine needs a query, even a single character to be specified in the free text to be able to return results, i.e. the advanced search cannot be run alone.
The general database is under improvement, a lot of descriptors are missing. So if you don't find the expected results, enlarge your search by using less criteria.

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Should you wish to order a document, please send your request to with the following information : Document number, Author(s) and Title and the order form duly filled in.

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