共 50 条
- [31] GRAPHICAL INFORMATION - UNEQUAL DEVELOPMENT OF FOREIGN-TRADE OF IMPERIALIST COUNTRIES IPW BERICHTE, 1975, 4 (04): : 55 - 55
- [37] PATENTS AND FOREIGN-TRADE IIC-INTERNATIONAL REVIEW OF INDUSTRIAL PROPERTY AND COPYRIGHT LAW, 1984, 15 (05): : 569 - 587