{"id":"001035235","type":"book","title":"Polska piastowska 10 wieku w systemie państw i narodów europejskich wczesnego średniowiecza","publisher":"Polska Akademia Nauk, Oddział w Poznaniu","publisher-place":"Poznań/Gniezno","pages":"13-26","container-title":"Civitas Schinesghe : Mieszko I i początki państwa polskiego","author":[{"family":"Labuda","given":"Gerard 1916-"}],"issued":{"raw":"2004"}}