URL to GDZ resolver: 404
In the documents bibliographic references targeting URLs like https://gdz.sub.uni-goettingen.de/index.php?id=resolveppn&PPN=PPN129323659
that return 404.
In the documents bibliographic references targeting URLs like https://gdz.sub.uni-goettingen.de/index.php?id=resolveppn&PPN=PPN129323659
that return 404.