{"id":"001186359","type":"book","title":"Use of sediment echo-sounding for location of archaelogical sites under water","publisher":"Nationalmuseets Marinarkaeologiske Forskningscenter","pages":"13-15","container-title":"Maritime Archaeology Newsletter from Roskilde, 4 (1995","author":[{"family":"Grøn","given":"Ole"}],"issued":{"raw":"1995"}}