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- [33] DATA-BASE OF THE SYSTEM OF RECYCLING OF SECONDARY RAW-MATERIALS AND WASTES PRZEMYSL CHEMICZNY, 1989, 68 (03): : 105 - 108
- [34] THE SCOPE FOR UTILIZING JUTE WASTES AS RAW-MATERIALS IN VARIOUS INDUSTRIES - A REVIEW AGRICULTURAL WASTES, 1986, 15 (02): : 149 - 158
- [36] METALLSPIEGEL - NEW WAYS IN SEARCHING FOR RAW-MATERIALS AND IN UTILIZATION OF RAW-MATERIALS METALL, 1977, 31 (03): : 216 - 217
- [39] SUPPLY OF RAW-MATERIALS AND AGREEMENT ON RAW-MATERIALS - CONSIDERATIONS OF GERMAN RAW-MATERIALS POLICY WITH REGARD TO 3RD WORLD EUROPA ARCHIV, 1975, 30 (14): : 461 - 470