{"id":"001281057","type":"book","title":"Trebuchet, a gravity-operated siege engine. A study in experimental archaeology. Vastukaalu jõul töötav heitemasin","pages":"61-80","container-title":"Eesti Arheoloogia Ajakiri, 10,1 (2006","author":[{"family":"Saimre","given":"Tanel"}],"issued":{"raw":"2006"}}