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The Swiss National Library pursues an open data strategy. The metadata of the online catalogue Helveticat and the Bibliography of Swiss History (BHS) may be used without restriction by third parties, for both non-commercial and commercial purposes. It is not required, but nevertheless highly recommended, to indicate the source used so that other users can locate it and understand any changes that may have been made. The data are available in MARC 21 format via Z39.50 and on demand via OAI-PMH. A selection of our data can be downloaded from the portal opendata.swiss.
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