References
WORLD MINES REGISTER 1976-77 P 91WORLD MINING, SEPTEMBER, 1971, P. 49-51.BRINCKMANN, J., AND SIEWERS, U., 1980, STRATABOUND SULPHIDE-BARITE DEPOSITS IN THE RHENOHERCYNIAN ZONE: ERZMETALL,BD. 33, NR.3, P. 137-140.GEOLOGY RUNDSCHAU, V. 63, P. 22-73.GEOLOGY RUNDSCHAU, 1974, P. 74-93.ERZMETALL, 1978, BD.31, H.12, P.560-566.ERZMETALL, 1979,BD.32, H.12, P.532-537.MINING MAGAZINE, NOVEMBER 1979, P. 426-433.METALLGESELLSCHAFT, ANNUAL REPORTS 1978-80.ERZMETALL, 1979, BD.32, H.2, P. 90-94.ERZMETALL, 1979, BD.32, H.7/8, P. 303-306.ENGINEERING/MINING JOURNAL INTERNATIONAL DIRECTORY OF MINING1980, P. 130, 296.GLUCKAUF, 1976, 112, NR.10, P. 582-590.WORLD MINING, SEPTEMBER 1981, P. 53.ZIMMERMANN, R.A., AND AMSTUTZ, G.C., 1971, THE MEGGEN PYRITEBARITE DEPOSIT, IN MULLER, GERMAN, ED., SEDIMENTOLOGYOF PARTS OF CENTRAL EUROPE. INTER. SEDIMENTOL. CONG.,8TH, HEIDELBERG, GUIDEBOOK, FRANKFURT AM MAIN, VERLAGWALDEMAR KRAMER, P. 254-261.E&MJ INTERNATIONAL DIRECTORY OF MINING, 1991