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- [41] EXPORT DEPENDENCE OF GERMAN NON-FERROUS METAL TRADE AND INDUSTRY METALL, 1976, 30 (02): : 147 - 151
- [42] THE ANALYTICAL USE OF NEUTRONS IN THE NON-FERROUS METAL-INDUSTRY JOURNAL OF RADIOANALYTICAL CHEMISTRY, 1980, 55 (02): : 395 - 406
- [43] INVESTMENT ACTIVITIES IN NON-FERROUS METAL INDUSTRY IN 1965 AND 1966 METALL, 1966, 20 (10): : 1102 - &