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Seminar on the Nature of and Rationale for the Protection of Plant Varieties under the UPOV Convention : Beijing, China, September 15 to 17, 1993 / organized by the International Union for the Protection of New Varieties of Plants ; in cooperation with the State Science and Techonology Commission of China (SSTCC) ; and with the assistance of the Japanese Ministry of Agriculture, Forestry and Fisheries (MAFF) |
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