{"id":"001219490","type":"book","title":"Vermessungstechnische Lösungsvorschläge bei Grabungen in sehr engen Horizontalhöhlen","pages":"407-413","container-title":"Arbeitsblätter für Restauratoren, 34,2 (2001","author":[{"family":"Lehmann","given":"Jens"}],"issued":{"raw":"2001"}}