{"entities":{"P31":{"pageid":6295,"ns":122,"title":"Property:P31","lastrevid":10430,"modified":"2026-06-01T20:52:33Z","type":"property","datatype":"string","id":"P31","labels":{"en":{"language":"en","value":"ISBN Print (DOI)"}},"descriptions":{"en":{"language":"en","value":"Print ISBN-13 sourced from Crossref DOI metadata"}},"aliases":{},"claims":{}}}}