{"id":"000728858","type":"book","title":"Schwerminerale aus den Kohlenwäschen der Steinkohlen-Zechen \"Zollverein\" in Essen, \"Lohberg\" in Dinslaken und \"Fürst Leopold\" in Dorsten-Hervest","publisher":"Deutsches Bergbau-Museum","publisher-place":"Bochum","container-title":"Metalla","author":[{"family":"Homann","given":"Wolfgang"}],"issued":{"raw":"2006"}}