{"entities":{"P30":{"pageid":6294,"ns":122,"title":"Property:P30","lastrevid":11292,"modified":"2026-07-04T12:27:40Z","type":"property","datatype":"string","id":"P30","labels":{"en":{"language":"en","value":"ISBN Electronic"}},"descriptions":{"en":{"language":"en","value":"Electronic ISBN-13 sourced from Crossref DOI metadata"}},"aliases":{},"claims":{}}}}