{"id":"000998024","type":"book","title":"Z badań nad chronologią umocnień obronnych grodu gieckiego","publisher-place":"Pozna","pages":"150-157","container-title":"Kraje słowiańskie w wiekach średnich. Profanum i sacrum. Slavonic countries in the Middle Ages. Profanum and sacrum","author":[{"family":"Krysztofiak","given":"Teresa"}],"issued":{"raw":"1998"}}