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- [16] PROPERTIES OF RAW-MATERIALS FOR ELASTOMERS RELEVANT TO PROCESSING KAUTSCHUK GUMMI KUNSTSTOFFE, 1990, 43 (01): : 35 - 40
- [17] PHOSPHATE RAW-MATERIALS PREPARATION TECHNOLOGY IMPROVEMENT WAYS KHIMICHESKAYA PROMYSHLENNOST, 1988, (11): : 658 - 659
- [18] COMPOSITION OF COMMERCIAL PHOSPHATE RAW-MATERIALS - FUTURE TRENDS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1976, : 8 - 8