{"id":"001261886","type":"book","title":"Podróż morska Wulfstana w 9 wieku. Wyniki eksperymentalnego rejsu z Hedeby do Gdańska. Wulfstan's 9th century sea voyage. Report on an experimental crossing from Hedeby to Gdańsk","pages":"309-326","container-title":"Pomorania Antiqua, 20 (2005","author":[{"family":"Englert","given":"Anton."}],"issued":{"raw":"2005"}}