@book{ finc-131-2717, title = {Rohstoffwirtschaftliche Länderberichte XXX: USA Stahlveredler 1, Molbdän Wolfgang. Hrsg.: BGR Hannover}, author = {Wagner, H.}, address = {}, publisher = {}, year = {1985}, url = {https://search.montanportal.com/Record/finc-131-2717} }