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- [4] INTERNATIONAL-TRADE DURING THE 1ST-HALF OF THE EIGHTIES SOVIET AND EASTERN EUROPEAN FOREIGN TRADE, 1982, 18 (01): : 3 - 15
- [5] EXPORT TRADE IN MEAT MEALS DURING THE 1ST-HALF OF 1982 FLEISCHWIRTSCHAFT, 1983, 63 (01): : 69 - 70
- [6] CHEMICAL MICROSCOPY IN THE 1ST-HALF OF THE 19TH-CENTURY ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (SEP): : 3 - 3