"Produktsigel"
In order to facilitate the subsequent use of the bibliographic metadata of our e-books and e-journals, we have assigned them a "Produktsigel":
"Produktsigel" are unique identifiers for collections of online products. They are created according to the ISIL standard and assigned centrally by the German ISIL Agency of the Staatsbibliothek zu Berlin. Individual titles that are offered by a provider as a package are summarised under the "Produktsigel".
Further information and (interface) links can be found here.
