{"id":"001045030","type":"book","title":"Umocnienia średniowiecznego Poznania","publisher":"Poznańskie Towarzystwo Przyjaciół Nauk","publisher-place":"Pozna","pages":"305-324","container-title":"Civitas Posnaniensis : Studia z dziejów średniowiecznego Poznania. (Civitas Posnaniensis. Studies in the history of Medieval Pozna","author":[{"family":"Pietrzak","given":"Janusz"}],"issued":{"raw":"2005"}}