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Meeresbergbau auf Kobalt, Kupfer, Mangan und Nickel : Bedarfsdeckung, Betriebskosten, Wirtschaftlichkeit
Dorstewitz, Günter, (1971)
Potential fiscal impacts of manganese nodule processing in the Puna and Kohala districts of Hawaii
Blood, Dwight M., (1984)
Manganese nodule distribution, mineralogy and geochemistry and relation to sediment type in the Aitutaki Passage, South-West Pacific
Glasby, G. P., (1983)
Global approaches to commodity price stabilization
Baghdadi, Mahdi el, (1989)
Global commodity price stabilization : implications for world trade and development
Suliman, Mohamed Osman, (1995)